From ff4f844f0bdd45a8aabdbeeb7039250f617d137e Mon Sep 17 00:00:00 2001
From: Jan-Ivar Bruaroey <jan-ivar@users.noreply.github.com>
Date: Wed, 27 Apr 2022 17:18:21 +0000
Subject: [PATCH] Merge pull request #395 from jan-ivar/perstreamstats

SHA: 66b0772ce5b3f0708ba40676a7b19a7245b090f6
Reason: push, by @jan-ivar

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
---
 index.html | 953 ++++++++++++++++++++++++++++++++++-------------------
 1 file changed, 614 insertions(+), 339 deletions(-)

diff --git a/index.html b/index.html
index 9573b35c..a4d8a070 100644
--- a/index.html
+++ b/index.html
@@ -8,7 +8,7 @@
   <link href="https://www.w3.org/2008/site/images/favicon.ico" rel="icon">
   <meta content="Bikeshed version fb1e763a4, updated Tue Mar 1 13:13:50 2022 -0800" name="generator">
   <link href="https://www.w3.org/TR/webtransport/" rel="canonical">
-  <meta content="b40dcc967ad47301fcdfddd5cd89600c587d0052" name="document-revision">
+  <meta content="66b0772ce5b3f0708ba40676a7b19a7245b090f6" name="document-revision">
 <style>/* style-autolinks */
 
 .css.css, .property.property, .descriptor.descriptor {
@@ -590,7 +590,7 @@
   <div class="head">
    <p data-fill-with="logo"><a class="logo" href="https://www.w3.org/"> <img alt="W3C" height="48" src="https://www.w3.org/StyleSheets/TR/2021/logos/W3C" width="72"> </a> </p>
    <h1 class="p-name no-ref" id="title">WebTransport</h1>
-   <p id="w3c-state"><a href="https://www.w3.org/standards/types#ED">Editor’s Draft</a>, <time class="dt-updated" datetime="2022-04-26">26 April 2022</time></p>
+   <p id="w3c-state"><a href="https://www.w3.org/standards/types#ED">Editor’s Draft</a>, <time class="dt-updated" datetime="2022-04-27">27 April 2022</time></p>
    <details open>
     <summary>More details about this document</summary>
     <div data-fill-with="spec-metadata">
@@ -672,18 +672,22 @@ <h2 class="no-num no-toc no-ref" id="contents">Table of Contents</h2>
       <li><a href="#web-transport-stats①"><span class="secno">5.12</span> <span class="content"><code>WebTransportDatagramStats</code> Dictionary</span></a>
      </ol>
     <li>
-     <a href="#send-stream"><span class="secno">6</span> <span class="content"><code>SendStream</code></span></a>
+     <a href="#send-stream"><span class="secno">6</span> <span class="content">Interface <code>WebTransportSendStream</code></span></a>
      <ol class="toc">
-      <li><a href="#send-stream-internal-slots"><span class="secno">6.1</span> <span class="content">Internal Slots</span></a>
-      <li><a href="#send-stream-procedures"><span class="secno">6.2</span> <span class="content">Procedures</span></a>
-      <li><a href="#send-stream-STOP_SENDING"><span class="secno">6.3</span> <span class="content">STOP_SENDING signal coming from the server</span></a>
+      <li><a href="#send-stream-methods"><span class="secno">6.1</span> <span class="content">Methods</span></a>
+      <li><a href="#send-stream-internal-slots"><span class="secno">6.2</span> <span class="content">Internal Slots</span></a>
+      <li><a href="#send-stream-procedures"><span class="secno">6.3</span> <span class="content">Procedures</span></a>
+      <li><a href="#send-stream-STOP_SENDING"><span class="secno">6.4</span> <span class="content">STOP_SENDING signal coming from the server</span></a>
+      <li><a href="#send-stream-stats"><span class="secno">6.5</span> <span class="content"><code>WebTransportSendStreamStats</code> Dictionary</span></a>
      </ol>
     <li>
-     <a href="#receive-stream"><span class="secno">7</span> <span class="content"><code>ReceiveStream</code></span></a>
+     <a href="#receive-stream"><span class="secno">7</span> <span class="content">Interface <code>WebTransportReceiveStream</code></span></a>
      <ol class="toc">
-      <li><a href="#receive-stream-internal-slots"><span class="secno">7.1</span> <span class="content">Internal Slots</span></a>
-      <li><a href="#receive-stream-procedures"><span class="secno">7.2</span> <span class="content">Procedures</span></a>
-      <li><a href="#receive-stream-RESET_STREAM"><span class="secno">7.3</span> <span class="content">Reset signal coming from the server</span></a>
+      <li><a href="#receive-stream-methods"><span class="secno">7.1</span> <span class="content">Methods</span></a>
+      <li><a href="#receive-stream-internal-slots"><span class="secno">7.2</span> <span class="content">Internal Slots</span></a>
+      <li><a href="#receive-stream-procedures"><span class="secno">7.3</span> <span class="content">Procedures</span></a>
+      <li><a href="#receive-stream-RESET_STREAM"><span class="secno">7.4</span> <span class="content">Reset signal coming from the server</span></a>
+      <li><a href="#receive-stream-stats"><span class="secno">7.5</span> <span class="content"><code>WebTransportReceiveStreamStats</code> Dictionary</span></a>
      </ol>
     <li>
      <a href="#bidirectional-stream"><span class="secno">8</span> <span class="content">Interface <code>WebTransportBidirectionalStream</code></span></a>
@@ -1248,8 +1252,8 @@ <h2 class="heading settled" data-level="5" id="web-transport"><span class="secno
   /* a ReadableStream of WebTransportBidirectionalStream objects */
   <c- b>readonly</c-> <c- b>attribute</c-> <a data-link-type="idl-name" href="https://streams.spec.whatwg.org/#readablestream" id="ref-for-readablestream③"><c- n>ReadableStream</c-></a> <a class="idl-code" data-link-type="attribute" data-readonly data-type="ReadableStream" href="#dom-webtransport-incomingbidirectionalstreams" id="ref-for-dom-webtransport-incomingbidirectionalstreams"><c- g>incomingBidirectionalStreams</c-></a>;
 
-  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise④"><c- b>Promise</c-></a>&lt;<a data-link-type="idl-name" href="https://streams.spec.whatwg.org/#writablestream" id="ref-for-writablestream④"><c- n>WritableStream</c-></a>> <a class="idl-code" data-link-type="method" href="#dom-webtransport-createunidirectionalstream" id="ref-for-dom-webtransport-createunidirectionalstream"><c- g>createUnidirectionalStream</c-></a>();
-  /* a ReadableStream of ReceiveStreams */
+  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise④"><c- b>Promise</c-></a>&lt;<a data-link-type="idl-name" href="#webtransportsendstream" id="ref-for-webtransportsendstream"><c- n>WebTransportSendStream</c-></a>> <a class="idl-code" data-link-type="method" href="#dom-webtransport-createunidirectionalstream" id="ref-for-dom-webtransport-createunidirectionalstream"><c- g>createUnidirectionalStream</c-></a>();
+  /* a ReadableStream of WebTransportReceiveStream objects */
   <c- b>readonly</c-> <c- b>attribute</c-> <a data-link-type="idl-name" href="https://streams.spec.whatwg.org/#readablestream" id="ref-for-readablestream④"><c- n>ReadableStream</c-></a> <a class="idl-code" data-link-type="attribute" data-readonly data-type="ReadableStream" href="#dom-webtransport-incomingunidirectionalstreams" id="ref-for-dom-webtransport-incomingunidirectionalstreams"><c- g>incomingUnidirectionalStreams</c-></a>;
 };
 
@@ -1269,16 +1273,16 @@ <h3 class="heading settled" data-level="5.1" id="webtransport-internal-slots"><s
     <tbody>
      <tr>
       <td><dfn class="dfn-paneled idl-code" data-dfn-for="WebTransport" data-dfn-type="attribute" data-export id="dom-webtransport-sendstreams-slot"><code>[[SendStreams]]</code></dfn> 
-      <td class="non-normative">An <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#ordered-set" id="ref-for-ordered-set">ordered set</a> of <code class="idl"><a data-link-type="idl" href="#sendstream" id="ref-for-sendstream">SendStream</a></code>s owned by this <code class="idl"><a data-link-type="idl" href="#webtransport" id="ref-for-webtransport⑦">WebTransport</a></code>. 
+      <td class="non-normative">An <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#ordered-set" id="ref-for-ordered-set">ordered set</a> of <code class="idl"><a data-link-type="idl" href="#webtransportsendstream" id="ref-for-webtransportsendstream①">WebTransportSendStream</a></code>s owned by this <code class="idl"><a data-link-type="idl" href="#webtransport" id="ref-for-webtransport⑦">WebTransport</a></code>. 
      <tr>
       <td><dfn class="dfn-paneled idl-code" data-dfn-for="WebTransport" data-dfn-type="attribute" data-export id="dom-webtransport-receivestreams-slot"><code>[[ReceiveStreams]]</code></dfn> 
-      <td class="non-normative">An <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#ordered-set" id="ref-for-ordered-set①">ordered set</a> of <code class="idl"><a data-link-type="idl" href="#receivestream" id="ref-for-receivestream">ReceiveStream</a></code>s owned by this <code class="idl"><a data-link-type="idl" href="#webtransport" id="ref-for-webtransport⑧">WebTransport</a></code>. 
+      <td class="non-normative">An <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#ordered-set" id="ref-for-ordered-set①">ordered set</a> of <code class="idl"><a data-link-type="idl" href="#webtransportreceivestream" id="ref-for-webtransportreceivestream">WebTransportReceiveStream</a></code>s owned by this <code class="idl"><a data-link-type="idl" href="#webtransport" id="ref-for-webtransport⑧">WebTransport</a></code>. 
      <tr>
       <td><dfn class="dfn-paneled idl-code" data-dfn-for="WebTransport" data-dfn-type="attribute" data-export id="dom-webtransport-incomingbidirectionalstreams-slot"><code>[[IncomingBidirectionalStreams]]</code></dfn> 
       <td class="non-normative">A <code class="idl"><a data-link-type="idl" href="https://streams.spec.whatwg.org/#readablestream" id="ref-for-readablestream⑤">ReadableStream</a></code> consisting of <code class="idl"><a data-link-type="idl" href="#webtransportbidirectionalstream" id="ref-for-webtransportbidirectionalstream①">WebTransportBidirectionalStream</a></code> objects. 
      <tr>
       <td><dfn class="dfn-paneled idl-code" data-dfn-for="WebTransport" data-dfn-type="attribute" data-export id="dom-webtransport-incomingunidirectionalstreams-slot"><code>[[IncomingUnidirectionalStreams]]</code></dfn> 
-      <td class="non-normative">A <code class="idl"><a data-link-type="idl" href="https://streams.spec.whatwg.org/#readablestream" id="ref-for-readablestream⑥">ReadableStream</a></code> consisting of <code class="idl"><a data-link-type="idl" href="#receivestream" id="ref-for-receivestream①">ReceiveStream</a></code>s. 
+      <td class="non-normative">A <code class="idl"><a data-link-type="idl" href="https://streams.spec.whatwg.org/#readablestream" id="ref-for-readablestream⑥">ReadableStream</a></code> consisting of <code class="idl"><a data-link-type="idl" href="#webtransportreceivestream" id="ref-for-webtransportreceivestream①">WebTransportReceiveStream</a></code>s. 
      <tr>
       <td><dfn class="dfn-paneled idl-code" data-dfn-for="WebTransport" data-dfn-type="attribute" data-export id="dom-webtransport-state-slot"><code>[[State]]</code></dfn> 
       <td class="non-normative">An enum indicating the state of the transport. One of <code>"connecting"</code>, <code>"connected"</code>, <code>"closed"</code>, and <code>"failed"</code>. 
@@ -1328,7 +1332,7 @@ <h3 class="heading settled" data-level="5.2" id="webtransport-constructor"><span
      <li data-md>
       <p>Let <var>incomingDatagrams</var> be a <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#new" id="ref-for-new①">new</a> <code class="idl"><a data-link-type="idl" href="https://streams.spec.whatwg.org/#readablestream" id="ref-for-readablestream⑦">ReadableStream</a></code>.</p>
      <li data-md>
-      <p>Let <var>outgoingDatagrams</var> be a <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#new" id="ref-for-new②">new</a> <code class="idl"><a data-link-type="idl" href="https://streams.spec.whatwg.org/#writablestream" id="ref-for-writablestream⑤">WritableStream</a></code>.</p>
+      <p>Let <var>outgoingDatagrams</var> be a <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#new" id="ref-for-new②">new</a> <code class="idl"><a data-link-type="idl" href="https://streams.spec.whatwg.org/#writablestream" id="ref-for-writablestream④">WritableStream</a></code>.</p>
      <li data-md>
       <p>Let <var>datagrams</var> be the result of <a data-link-type="dfn" href="#webtransportdatagramduplexstream-create" id="ref-for-webtransportdatagramduplexstream-create">creating</a> a <code class="idl"><a data-link-type="idl" href="#webtransportdatagramduplexstream" id="ref-for-webtransportdatagramduplexstream⑥">WebTransportDatagramDuplexStream</a></code>, its <a data-link-type="dfn" href="#webtransportdatagramduplexstream-create-readable" id="ref-for-webtransportdatagramduplexstream-create-readable">readable</a> set to <var>incomingDatagrams</var> and its <a data-link-type="dfn" href="#webtransportdatagramduplexstream-create-writable" id="ref-for-webtransportdatagramduplexstream-create-writable">writable</a> set to <var>outgoingDatagrams</var>.</p>
      <li data-md>
@@ -1540,7 +1544,7 @@ <h3 class="heading settled" data-level="5.2" id="webtransport-constructor"><span
       <p><a data-link-type="dfn" href="#webtransport-queue-a-network-task" id="ref-for-webtransport-queue-a-network-task⑨">Queue a network task</a> with <var>transport</var> to run these steps:</p>
       <ol>
        <li data-md>
-        <p>Let <var>stream</var> be the result of <a data-link-type="dfn" href="#receivestream-create" id="ref-for-receivestream-create">creating</a> a <code class="idl"><a data-link-type="idl" href="#receivestream" id="ref-for-receivestream②">ReceiveStream</a></code> with <var>internalStream</var> and <var>transport</var>.</p>
+        <p>Let <var>stream</var> be the result of <a data-link-type="dfn" href="#webtransportreceivestream-create" id="ref-for-webtransportreceivestream-create">creating</a> a <code class="idl"><a data-link-type="idl" href="#webtransportreceivestream" id="ref-for-webtransportreceivestream②">WebTransportReceiveStream</a></code> with <var>internalStream</var> and <var>transport</var>.</p>
        <li data-md>
         <p><a data-link-type="dfn" href="https://streams.spec.whatwg.org/#readablestream-enqueue" id="ref-for-readablestream-enqueue③">Enqueue</a> <var>stream</var> to <var>transport</var>.<code class="idl"><a data-link-type="idl" href="#dom-webtransport-incomingunidirectionalstreams-slot" id="ref-for-dom-webtransport-incomingunidirectionalstreams-slot②">[[IncomingUnidirectionalStreams]]</a></code>.</p>
        <li data-md>
@@ -1578,7 +1582,7 @@ <h3 class="heading settled" data-level="5.3" id="webtransport-attributes"><span
      </ol>
     <dt data-md><dfn class="dfn-paneled idl-code" data-dfn-for="WebTransport" data-dfn-type="attribute" data-export id="dom-webtransport-incomingunidirectionalstreams"><code>incomingUnidirectionalStreams</code></dfn>, <span> of type <a data-link-type="idl-name" href="https://streams.spec.whatwg.org/#readablestream" id="ref-for-readablestream①②">ReadableStream</a>, readonly</span>
     <dd data-md>
-     <p>A <code class="idl"><a data-link-type="idl" href="https://streams.spec.whatwg.org/#readablestream" id="ref-for-readablestream①③">ReadableStream</a></code> of unidirectional streams, each represented by a <code class="idl"><a data-link-type="idl" href="#receivestream" id="ref-for-receivestream③">ReceiveStream</a></code>, that have been received from the server.
+     <p>A <code class="idl"><a data-link-type="idl" href="https://streams.spec.whatwg.org/#readablestream" id="ref-for-readablestream①③">ReadableStream</a></code> of unidirectional streams, each represented by a <code class="idl"><a data-link-type="idl" href="#webtransportreceivestream" id="ref-for-webtransportreceivestream③">WebTransportReceiveStream</a></code>, that have been received from the server.
  The getter steps for <code>incomingUnidirectionalStreams</code> are:</p>
      <ol>
       <li data-md>
@@ -1697,7 +1701,7 @@ <h3 class="heading settled" data-level="5.4" id="webtransport-methods"><span cla
      </ol>
     <dt data-md><dfn class="dfn-paneled idl-code" data-dfn-for="WebTransport" data-dfn-type="method" data-export id="dom-webtransport-createunidirectionalstream"><code>createUnidirectionalStream()</code></dfn>
     <dd data-md>
-     <p>Creates a <code class="idl"><a data-link-type="idl" href="#sendstream" id="ref-for-sendstream①">SendStream</a></code> for an outgoing unidirectional stream.  Note
+     <p>Creates a <code class="idl"><a data-link-type="idl" href="#webtransportsendstream" id="ref-for-webtransportsendstream②">WebTransportSendStream</a></code> for an outgoing unidirectional stream.  Note
  that the mere creation of a stream is not immediately visible to the server until it is used
  to send data.</p>
      <p>When <code>createUnidirectionalStream()</code> method is called, the user agent MUST
@@ -1724,7 +1728,7 @@ <h3 class="heading settled" data-level="5.4" id="webtransport-methods"><span cla
           <li data-md>
            <p>If <var>transport</var>.<code class="idl"><a data-link-type="idl" href="#dom-webtransport-state-slot" id="ref-for-dom-webtransport-state-slot②⑤">[[State]]</a></code> is <code>"closed"</code> or <code>"failed"</code>, <a data-link-type="dfn" href="http://www.ecma-international.org/ecma-262/6.0/index.html#sec-promise-objects" id="ref-for-sec-promise-objects①⑤">reject</a> <var>p</var> with an <code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#invalidstateerror" id="ref-for-invalidstateerror⑤">InvalidStateError</a></code> and abort these steps.</p>
           <li data-md>
-           <p>Let <var>stream</var> be the result of <a data-link-type="dfn" href="#sendstream-create" id="ref-for-sendstream-create">creating</a> a <code class="idl"><a data-link-type="idl" href="#sendstream" id="ref-for-sendstream②">SendStream</a></code> with <var>internalStream</var> and <var>transport</var>.</p>
+           <p>Let <var>stream</var> be the result of <a data-link-type="dfn" href="#webtransportsendstream-create" id="ref-for-webtransportsendstream-create">creating</a> a <code class="idl"><a data-link-type="idl" href="#webtransportsendstream" id="ref-for-webtransportsendstream③">WebTransportSendStream</a></code> with <var>internalStream</var> and <var>transport</var>.</p>
           <li data-md>
            <p><a data-link-type="dfn" href="http://www.ecma-international.org/ecma-262/6.0/index.html#sec-promise-objects" id="ref-for-sec-promise-objects①⑥">Resolve</a> <var>p</var> with <var>stream</var>.</p>
          </ol>
@@ -2051,12 +2055,49 @@ <h3 class="heading settled" data-level="5.12" id="web-transport-stats①"><span
     <dd data-md>
      <p>The number of sent datagrams that were declared lost, as defined in <a data-link-type="biblio" href="#biblio-rfc9002">[RFC9002]</a> <a href="https://www.rfc-editor.org/rfc/rfc9002#section-6.1">Section 6.1</a>.</p>
    </dl>
-   <h2 class="heading settled" data-level="6" id="send-stream"><span class="secno">6. </span><span class="content"><code>SendStream</code></span><a class="self-link" href="#send-stream"></a></h2>
-   <p>In this spec, we call a <code class="idl"><a data-link-type="idl" href="https://streams.spec.whatwg.org/#writablestream" id="ref-for-writablestream⑥">WritableStream</a></code> providing outgoing streaming features with an <a data-link-type="dfn" href="#stream-outgoing-unidirectional" id="ref-for-stream-outgoing-unidirectional③">outgoing
-unidirectional</a> or <a data-link-type="dfn" href="#stream-bidirectional" id="ref-for-stream-bidirectional④">bidirectional</a> <a data-link-type="dfn" href="#webtransport-stream" id="ref-for-webtransport-stream⑤">WebTransport stream</a> a <dfn class="dfn-paneled idl-code" data-dfn-type="interface" data-export id="sendstream"><code>SendStream</code></dfn>.</p>
-   <p class="note" role="note"><span>Note:</span> <code class="idl"><a data-link-type="idl" href="#sendstream" id="ref-for-sendstream③">SendStream</a></code> is not a Web IDL type. A <code class="idl"><a data-link-type="idl" href="#sendstream" id="ref-for-sendstream④">SendStream</a></code> is always created by the <a data-link-type="dfn" href="#sendstream-create" id="ref-for-sendstream-create①">create</a> procedure.</p>
-   <h3 class="heading settled" data-level="6.1" id="send-stream-internal-slots"><span class="secno">6.1. </span><span class="content">Internal Slots</span><a class="self-link" href="#send-stream-internal-slots"></a></h3>
-   <p>A <code class="idl"><a data-link-type="idl" href="#sendstream" id="ref-for-sendstream⑤">SendStream</a></code> has the following internal slots.</p>
+   <h2 class="heading settled" data-level="6" id="send-stream"><span class="secno">6. </span><span class="content">Interface <code>WebTransportSendStream</code></span><a class="self-link" href="#send-stream"></a></h2>
+   <p>A <code class="idl"><a data-link-type="idl" href="#webtransportsendstream" id="ref-for-webtransportsendstream④">WebTransportSendStream</a></code> is a <code class="idl"><a data-link-type="idl" href="https://streams.spec.whatwg.org/#writablestream" id="ref-for-writablestream⑤">WritableStream</a></code> providing outgoing streaming
+features with an <a data-link-type="dfn" href="#stream-outgoing-unidirectional" id="ref-for-stream-outgoing-unidirectional③">outgoing unidirectional</a> or <a data-link-type="dfn" href="#stream-bidirectional" id="ref-for-stream-bidirectional④">bidirectional</a> <a data-link-type="dfn" href="#webtransport-stream" id="ref-for-webtransport-stream⑤">WebTransport stream</a>.</p>
+   <p>It is a <code class="idl"><a data-link-type="idl" href="https://streams.spec.whatwg.org/#writablestream" id="ref-for-writablestream⑥">WritableStream</a></code> of <code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#idl-Uint8Array" id="ref-for-idl-Uint8Array②">Uint8Array</a></code> that can be written to, to send
+data to the server.</p>
+<pre class="idl highlight def">[<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#Exposed" id="ref-for-Exposed②"><c- g>Exposed</c-></a>=(<c- n>Window</c->,<c- n>Worker</c->), <a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#SecureContext" id="ref-for-SecureContext②"><c- g>SecureContext</c-></a>]
+<c- b>interface</c-> <dfn class="dfn-paneled idl-code" data-dfn-type="interface" data-export id="webtransportsendstream"><code><c- g>WebTransportSendStream</c-></code></dfn> : <a data-link-type="idl-name" href="https://streams.spec.whatwg.org/#writablestream" id="ref-for-writablestream⑦"><c- n>WritableStream</c-></a> {
+  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise⑤"><c- b>Promise</c-></a>&lt;<a data-link-type="idl-name" href="#dictdef-webtransportsendstreamstats" id="ref-for-dictdef-webtransportsendstreamstats"><c- n>WebTransportSendStreamStats</c-></a>> <a class="idl-code" data-link-type="method" href="#dom-webtransportsendstream-getstats" id="ref-for-dom-webtransportsendstream-getstats"><c- g>getStats</c-></a>();
+};
+</pre>
+   <p>A <code class="idl"><a data-link-type="idl" href="#webtransportsendstream" id="ref-for-webtransportsendstream⑤">WebTransportSendStream</a></code> is always created by the <a data-link-type="dfn" href="#webtransportsendstream-create" id="ref-for-webtransportsendstream-create①">create</a> procedure.</p>
+   <h3 class="heading settled" data-level="6.1" id="send-stream-methods"><span class="secno">6.1. </span><span class="content">Methods</span><a class="self-link" href="#send-stream-methods"></a></h3>
+   <dl>
+    <dt data-md><dfn class="dfn-paneled idl-code" data-dfn-for="WebTransportSendStream" data-dfn-type="method" data-export id="dom-webtransportsendstream-getstats"><code>getStats()</code></dfn>
+    <dd data-md>
+     <p>Gathers stats specific to this <code class="idl"><a data-link-type="idl" href="#webtransportsendstream" id="ref-for-webtransportsendstream⑥">WebTransportSendStream</a></code>'s performance,
+ and reports the result asynchronously.</p>
+     <p></p>
+     <p>When getStats is called, the user agent MUST run the following steps:</p>
+     <ol>
+      <li data-md>
+       <p>Let <var>p</var> be a new promise.</p>
+      <li data-md>
+       <p>Return <var>p</var> and continue the following steps <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel⑨">in parallel</a>.</p>
+       <ol>
+        <li data-md>
+         <p>Gather the stats specific to this <code class="idl"><a data-link-type="idl" href="#webtransportsendstream" id="ref-for-webtransportsendstream⑦">WebTransportSendStream</a></code>.</p>
+        <li data-md>
+         <p>Wait for the stats to be ready.</p>
+        <li data-md>
+         <p><a data-link-type="dfn" href="#webtransport-queue-a-network-task" id="ref-for-webtransport-queue-a-network-task①⑦">Queue a network task</a> with <var>transport</var> to run the following steps:</p>
+         <ol>
+          <li data-md>
+           <p>Let <var>stats</var> be a <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#new" id="ref-for-new⑤">new</a> <code class="idl"><a data-link-type="idl" href="#dictdef-webtransportsendstreamstats" id="ref-for-dictdef-webtransportsendstreamstats①">WebTransportSendStreamStats</a></code> object
+  representing the gathered stats.</p>
+          <li data-md>
+           <p><a data-link-type="dfn" href="http://www.ecma-international.org/ecma-262/6.0/index.html#sec-promise-objects" id="ref-for-sec-promise-objects②①">Resolve</a> <var>p</var> with <var>stats</var>.</p>
+         </ol>
+       </ol>
+     </ol>
+   </dl>
+   <h3 class="heading settled" data-level="6.2" id="send-stream-internal-slots"><span class="secno">6.2. </span><span class="content">Internal Slots</span><a class="self-link" href="#send-stream-internal-slots"></a></h3>
+   <p>A <code class="idl"><a data-link-type="idl" href="#webtransportsendstream" id="ref-for-webtransportsendstream⑧">WebTransportSendStream</a></code> has the following internal slots.</p>
    <table class="data">
     <thead>
      <tr>
@@ -2064,60 +2105,58 @@ <h3 class="heading settled" data-level="6.1" id="send-stream-internal-slots"><sp
       <th>Description (<em>non-normative</em>) 
     <tbody>
      <tr>
-      <td><dfn class="dfn-paneled idl-code" data-dfn-for="SendStream" data-dfn-type="attribute" data-export id="dom-sendstream-internalstream-slot"><code>[[InternalStream]]</code></dfn> 
+      <td><dfn class="dfn-paneled idl-code" data-dfn-for="WebTransportSendStream" data-dfn-type="attribute" data-export id="dom-webtransportsendstream-internalstream-slot"><code>[[InternalStream]]</code></dfn> 
       <td class="non-normative">An <a data-link-type="dfn" href="#stream-outgoing-unidirectional" id="ref-for-stream-outgoing-unidirectional④">outgoing unidirectional</a> or <a data-link-type="dfn" href="#stream-bidirectional" id="ref-for-stream-bidirectional⑤">bidirectional</a> <a data-link-type="dfn" href="#webtransport-stream" id="ref-for-webtransport-stream⑥">WebTransport stream</a>. 
      <tr>
-      <td><dfn class="dfn-paneled idl-code" data-dfn-for="SendStream" data-dfn-type="attribute" data-export id="dom-sendstream-pendingoperation-slot"><code>[[PendingOperation]]</code></dfn> 
+      <td><dfn class="dfn-paneled idl-code" data-dfn-for="WebTransportSendStream" data-dfn-type="attribute" data-export id="dom-webtransportsendstream-pendingoperation-slot"><code>[[PendingOperation]]</code></dfn> 
       <td class="non-normative">A promise representing a pending write or close operation, or null. 
      <tr>
-      <td><dfn class="dfn-paneled idl-code" data-dfn-for="SendStream" data-dfn-type="attribute" data-export id="dom-sendstream-transport-slot"><code>[[Transport]]</code></dfn> 
-      <td class="non-normative">A <code class="idl"><a data-link-type="idl" href="#webtransport" id="ref-for-webtransport②④">WebTransport</a></code> which owns this <code class="idl"><a data-link-type="idl" href="#sendstream" id="ref-for-sendstream⑥">SendStream</a></code>. 
+      <td><dfn class="dfn-paneled idl-code" data-dfn-for="WebTransportSendStream" data-dfn-type="attribute" data-export id="dom-webtransportsendstream-transport-slot"><code>[[Transport]]</code></dfn> 
+      <td class="non-normative">A <code class="idl"><a data-link-type="idl" href="#webtransport" id="ref-for-webtransport②④">WebTransport</a></code> which owns this <code class="idl"><a data-link-type="idl" href="#webtransportsendstream" id="ref-for-webtransportsendstream⑨">WebTransportSendStream</a></code>. 
     <tbody>
    </table>
-   <p class="note" role="note"><span>Note:</span> These internal slots need to be attached to <code class="idl"><a data-link-type="idl" href="#sendstream" id="ref-for-sendstream⑦">SendStream</a></code> (which is a kind of <code class="idl"><a data-link-type="idl" href="https://streams.spec.whatwg.org/#writablestream" id="ref-for-writablestream⑦">WritableStream</a></code>) conceptually, not physically. For example, an implementation could place them on
-an object which is referenced from <var>writeAlgorithm</var>, <var>closeAlgorithm</var> and <var>abortAlgorithm</var> in the <a data-link-type="dfn" href="#sendstream-create" id="ref-for-sendstream-create②">create</a> procedure.</p>
-   <h3 class="heading settled" data-level="6.2" id="send-stream-procedures"><span class="secno">6.2. </span><span class="content">Procedures</span><a class="self-link" href="#send-stream-procedures"></a></h3>
+   <h3 class="heading settled" data-level="6.3" id="send-stream-procedures"><span class="secno">6.3. </span><span class="content">Procedures</span><a class="self-link" href="#send-stream-procedures"></a></h3>
    <div class="algorithm" data-algorithm="create a SendStream">
-    <p>To <dfn class="dfn-paneled" data-dfn-for="SendStream" data-dfn-type="dfn" data-export data-lt="create|creating" id="sendstream-create">create</dfn> a <code class="idl"><a data-link-type="idl" href="#sendstream" id="ref-for-sendstream⑧">SendStream</a></code>, with an <a data-link-type="dfn" href="#stream-outgoing-unidirectional" id="ref-for-stream-outgoing-unidirectional⑤">outgoing unidirectional</a> or <a data-link-type="dfn" href="#stream-bidirectional" id="ref-for-stream-bidirectional⑥">bidirectional</a> <a data-link-type="dfn" href="#webtransport-stream" id="ref-for-webtransport-stream⑦">WebTransport stream</a> <var>internalStream</var> and a <code class="idl"><a data-link-type="idl" href="#webtransport" id="ref-for-webtransport②⑤">WebTransport</a></code> <var>transport</var>, run these steps:</p>
+    <p>To <dfn class="dfn-paneled" data-dfn-for="WebTransportSendStream" data-dfn-type="dfn" data-export data-lt="create|creating" id="webtransportsendstream-create">create</dfn> a <code class="idl"><a data-link-type="idl" href="#webtransportsendstream" id="ref-for-webtransportsendstream①⓪">WebTransportSendStream</a></code>, with an <a data-link-type="dfn" href="#stream-outgoing-unidirectional" id="ref-for-stream-outgoing-unidirectional⑤">outgoing unidirectional</a> or <a data-link-type="dfn" href="#stream-bidirectional" id="ref-for-stream-bidirectional⑥">bidirectional</a> <a data-link-type="dfn" href="#webtransport-stream" id="ref-for-webtransport-stream⑦">WebTransport stream</a> <var>internalStream</var> and a <code class="idl"><a data-link-type="idl" href="#webtransport" id="ref-for-webtransport②⑤">WebTransport</a></code> <var>transport</var>, run these steps:</p>
     <ol>
      <li data-md>
-      <p>Let <var>stream</var> be a <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#new" id="ref-for-new⑤">new</a> <code class="idl"><a data-link-type="idl" href="https://streams.spec.whatwg.org/#writablestream" id="ref-for-writablestream⑧">WritableStream</a></code>, with:</p>
+      <p>Let <var>stream</var> be a <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#new" id="ref-for-new⑥">new</a> <code class="idl"><a data-link-type="idl" href="#webtransportsendstream" id="ref-for-webtransportsendstream①①">WebTransportSendStream</a></code>, with:</p>
       <dl>
-       <dt data-md><code class="idl"><a data-link-type="idl" href="#dom-sendstream-internalstream-slot" id="ref-for-dom-sendstream-internalstream-slot">[[InternalStream]]</a></code>
+       <dt data-md><code class="idl"><a data-link-type="idl" href="#dom-webtransportsendstream-internalstream-slot" id="ref-for-dom-webtransportsendstream-internalstream-slot">[[InternalStream]]</a></code>
        <dd data-md>
         <p><var>internalStream</var></p>
-       <dt data-md><code class="idl"><a data-link-type="idl" href="#dom-sendstream-pendingoperation-slot" id="ref-for-dom-sendstream-pendingoperation-slot">[[PendingOperation]]</a></code>
+       <dt data-md><code class="idl"><a data-link-type="idl" href="#dom-webtransportsendstream-pendingoperation-slot" id="ref-for-dom-webtransportsendstream-pendingoperation-slot">[[PendingOperation]]</a></code>
        <dd data-md>
         <p>null</p>
-       <dt data-md><code class="idl"><a data-link-type="idl" href="#dom-sendstream-transport-slot" id="ref-for-dom-sendstream-transport-slot">[[Transport]]</a></code>
+       <dt data-md><code class="idl"><a data-link-type="idl" href="#dom-webtransportsendstream-transport-slot" id="ref-for-dom-webtransportsendstream-transport-slot">[[Transport]]</a></code>
        <dd data-md>
         <p><var>transport</var></p>
       </dl>
      <li data-md>
-      <p>Let <var>writeAlgorithm</var> be an action that <a data-link-type="dfn" href="#sendstream-write" id="ref-for-sendstream-write">writes</a> <var>chunk</var> to <var>stream</var>, given <var>chunk</var>.</p>
+      <p>Let <var>writeAlgorithm</var> be an action that <a data-link-type="dfn" href="#webtransportsendstream-write" id="ref-for-webtransportsendstream-write">writes</a> <var>chunk</var> to <var>stream</var>, given <var>chunk</var>.</p>
      <li data-md>
-      <p>Let <var>closeAlgorithm</var> be an action that <a data-link-type="dfn" href="#sendstream-close" id="ref-for-sendstream-close">closes</a> <var>stream</var>.</p>
+      <p>Let <var>closeAlgorithm</var> be an action that <a data-link-type="dfn" href="#webtransportsendstream-close" id="ref-for-webtransportsendstream-close">closes</a> <var>stream</var>.</p>
      <li data-md>
-      <p>Let <var>abortAlgorithm</var> be an action that <a data-link-type="dfn" href="#sendstream-abort" id="ref-for-sendstream-abort">aborts</a> <var>stream</var> with <var>reason</var>, given <var>reason</var>.</p>
+      <p>Let <var>abortAlgorithm</var> be an action that <a data-link-type="dfn" href="#webtransportsendstream-abort" id="ref-for-webtransportsendstream-abort">aborts</a> <var>stream</var> with <var>reason</var>, given <var>reason</var>.</p>
      <li data-md>
       <p><a data-link-type="dfn" href="https://streams.spec.whatwg.org/#writablestream-set-up" id="ref-for-writablestream-set-up①">Set up</a> <var>stream</var> with <a data-link-type="dfn" href="https://streams.spec.whatwg.org/#writablestream-set-up-writealgorithm" id="ref-for-writablestream-set-up-writealgorithm①">writeAlgorithm</a> set to <var>writeAlgorithm</var>, <a data-link-type="dfn" href="https://streams.spec.whatwg.org/#writablestream-set-up-closealgorithm" id="ref-for-writablestream-set-up-closealgorithm">closeAlgorithm</a> set to <var>closeAlgorithm</var>, <a data-link-type="dfn" href="https://streams.spec.whatwg.org/#writablestream-set-up-abortalgorithm" id="ref-for-writablestream-set-up-abortalgorithm">abortAlgorithm</a> set to <var>abortAlgorithm</var>.</p>
      <li data-md>
       <p><a data-link-type="dfn" href="https://dom.spec.whatwg.org/#abortsignal-add" id="ref-for-abortsignal-add">Add</a> the following steps to <var>stream</var>’s [[controller]]'s [[signal]].</p>
       <ol>
        <li data-md>
-        <p>If <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-sendstream-pendingoperation-slot" id="ref-for-dom-sendstream-pendingoperation-slot①">[[PendingOperation]]</a></code> is null, then abort these steps.</p>
+        <p>If <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-webtransportsendstream-pendingoperation-slot" id="ref-for-dom-webtransportsendstream-pendingoperation-slot①">[[PendingOperation]]</a></code> is null, then abort these steps.</p>
        <li data-md>
         <p>Let <var>reason</var> be <var>stream</var>’s [[controller]]'s [[signal]]'s <a data-link-type="dfn" href="https://dom.spec.whatwg.org/#abortsignal-abort-reason" id="ref-for-abortsignal-abort-reason">abort reason</a>.</p>
        <li data-md>
-        <p>Let <var>abortPromise</var> be the result of <a data-link-type="dfn" href="#sendstream-abort" id="ref-for-sendstream-abort①">aborting</a> stream with <var>reason</var>.</p>
+        <p>Let <var>abortPromise</var> be the result of <a data-link-type="dfn" href="#webtransportsendstream-abort" id="ref-for-webtransportsendstream-abort①">aborting</a> stream with <var>reason</var>.</p>
        <li data-md>
-        <p><a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#upon-fulfillment" id="ref-for-upon-fulfillment②">Upon fulfillment</a> of <var>abortPromise</var>, <a data-link-type="dfn" href="http://www.ecma-international.org/ecma-262/6.0/index.html#sec-promise-objects" id="ref-for-sec-promise-objects②①">reject</a> <var>promise</var> with <var>reason</var>.</p>
+        <p><a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#upon-fulfillment" id="ref-for-upon-fulfillment②">Upon fulfillment</a> of <var>abortPromise</var>, <a data-link-type="dfn" href="http://www.ecma-international.org/ecma-262/6.0/index.html#sec-promise-objects" id="ref-for-sec-promise-objects②②">reject</a> <var>promise</var> with <var>reason</var>.</p>
        <li data-md>
-        <p>Let <var>pendingOperation</var> be <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-sendstream-pendingoperation-slot" id="ref-for-dom-sendstream-pendingoperation-slot②">[[PendingOperation]]</a></code>.</p>
+        <p>Let <var>pendingOperation</var> be <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-webtransportsendstream-pendingoperation-slot" id="ref-for-dom-webtransportsendstream-pendingoperation-slot②">[[PendingOperation]]</a></code>.</p>
        <li data-md>
-        <p>Set <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-sendstream-pendingoperation-slot" id="ref-for-dom-sendstream-pendingoperation-slot③">[[PendingOperation]]</a></code> to null.</p>
+        <p>Set <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-webtransportsendstream-pendingoperation-slot" id="ref-for-dom-webtransportsendstream-pendingoperation-slot③">[[PendingOperation]]</a></code> to null.</p>
        <li data-md>
-        <p><a data-link-type="dfn" href="http://www.ecma-international.org/ecma-262/6.0/index.html#sec-promise-objects" id="ref-for-sec-promise-objects②②">Resolve</a> <var>pendingOperation</var> with <var>promise</var>.</p>
+        <p><a data-link-type="dfn" href="http://www.ecma-international.org/ecma-262/6.0/index.html#sec-promise-objects" id="ref-for-sec-promise-objects②③">Resolve</a> <var>pendingOperation</var> with <var>promise</var>.</p>
       </ol>
      <li data-md>
       <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#set-append" id="ref-for-set-append">Append</a> <var>stream</var> to <var>transport</var>.<code class="idl"><a data-link-type="idl" href="#dom-webtransport-sendstreams-slot" id="ref-for-dom-webtransport-sendstreams-slot④">[[SendStreams]]</a></code>.</p>
@@ -2125,11 +2164,11 @@ <h3 class="heading settled" data-level="6.2" id="send-stream-procedures"><span c
       <p>Return <var>stream</var>.</p>
     </ol>
    </div>
-   <div class="algorithm" data-algorithm="write" data-algorithm-for="SendStream">
-     To <dfn class="dfn-paneled" data-dfn-for="SendStream" data-dfn-type="dfn" data-noexport id="sendstream-write">write</dfn> <var>chunk</var> to a <code class="idl"><a data-link-type="idl" href="#sendstream" id="ref-for-sendstream⑨">SendStream</a></code> <var>stream</var>, run these steps: 
+   <div class="algorithm" data-algorithm="write" data-algorithm-for="WebTransportSendStream">
+     To <dfn class="dfn-paneled" data-dfn-for="WebTransportSendStream" data-dfn-type="dfn" data-noexport id="webtransportsendstream-write">write</dfn> <var>chunk</var> to a <code class="idl"><a data-link-type="idl" href="#webtransportsendstream" id="ref-for-webtransportsendstream①②">WebTransportSendStream</a></code> <var>stream</var>, run these steps: 
     <ol>
      <li data-md>
-      <p>Let <var>transport</var> be <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-sendstream-transport-slot" id="ref-for-dom-sendstream-transport-slot①">[[Transport]]</a></code>.</p>
+      <p>Let <var>transport</var> be <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-webtransportsendstream-transport-slot" id="ref-for-dom-webtransportsendstream-transport-slot①">[[Transport]]</a></code>.</p>
      <li data-md>
       <p>If <var>chunk</var> is not a <code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#BufferSource" id="ref-for-BufferSource②">BufferSource</a></code>, return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-rejected-with" id="ref-for-a-promise-rejected-with①">a promise rejected with</a> a <code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#exceptiondef-typeerror" id="ref-for-exceptiondef-typeerror②">TypeError</a></code>.</p>
      <li data-md>
@@ -2137,11 +2176,11 @@ <h3 class="heading settled" data-level="6.2" id="send-stream-procedures"><span c
      <li data-md>
       <p>Let <var>bytes</var> be a copy of the <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#byte-sequence" id="ref-for-byte-sequence②">byte sequence</a> which <var>chunk</var> represents.</p>
      <li data-md>
-      <p>Set <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-sendstream-pendingoperation-slot" id="ref-for-dom-sendstream-pendingoperation-slot④">[[PendingOperation]]</a></code> to <var>promise</var>.</p>
+      <p>Set <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-webtransportsendstream-pendingoperation-slot" id="ref-for-dom-webtransportsendstream-pendingoperation-slot④">[[PendingOperation]]</a></code> to <var>promise</var>.</p>
      <li data-md>
-      <p>Return <var>promise</var> and run the remaining steps <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel⑨">in parallel</a>.</p>
+      <p>Return <var>promise</var> and run the remaining steps <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel①⓪">in parallel</a>.</p>
      <li data-md>
-      <p><a data-link-type="dfn" href="#stream-send" id="ref-for-stream-send">Send</a> <var>bytes</var> on <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-sendstream-internalstream-slot" id="ref-for-dom-sendstream-internalstream-slot①">[[InternalStream]]</a></code> and wait for the
+      <p><a data-link-type="dfn" href="#stream-send" id="ref-for-stream-send">Send</a> <var>bytes</var> on <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-webtransportsendstream-internalstream-slot" id="ref-for-dom-webtransportsendstream-internalstream-slot①">[[InternalStream]]</a></code> and wait for the
  operation to complete.
  This sending MAY be interleaved with sending of previously queued streams and datagrams,
  as well as streams and datagrams yet to be queued to be sent over this transport.</p>
@@ -2151,52 +2190,52 @@ <h3 class="heading settled" data-level="6.2" id="send-stream-procedures"><span c
       <p class="note" role="note"><span>Note:</span> We don’t reject <var>promise</var> here because we handle network errors elsewhere, and those steps
 error <var>stream</var> and reject the result of this write operation.</p>
      <li data-md>
-      <p><a data-link-type="dfn" href="#webtransport-queue-a-network-task" id="ref-for-webtransport-queue-a-network-task①⑦">Queue a network task</a> with <var>transport</var> to run these steps:</p>
+      <p><a data-link-type="dfn" href="#webtransport-queue-a-network-task" id="ref-for-webtransport-queue-a-network-task①⑧">Queue a network task</a> with <var>transport</var> to run these steps:</p>
       <ol>
        <li data-md>
-        <p>Set <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-sendstream-pendingoperation-slot" id="ref-for-dom-sendstream-pendingoperation-slot⑤">[[PendingOperation]]</a></code> to null.</p>
+        <p>Set <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-webtransportsendstream-pendingoperation-slot" id="ref-for-dom-webtransportsendstream-pendingoperation-slot⑤">[[PendingOperation]]</a></code> to null.</p>
        <li data-md>
-        <p><a data-link-type="dfn" href="http://www.ecma-international.org/ecma-262/6.0/index.html#sec-promise-objects" id="ref-for-sec-promise-objects②③">Resolve</a> <var>promise</var> with undefined.</p>
+        <p><a data-link-type="dfn" href="http://www.ecma-international.org/ecma-262/6.0/index.html#sec-promise-objects" id="ref-for-sec-promise-objects②④">Resolve</a> <var>promise</var> with undefined.</p>
       </ol>
     </ol>
     <p class="note" role="note"><span>Note:</span> The user-agent MAY have a buffer to improve the transfer performance. Such a buffer
-SHOULD have a fixed upper limit, to carry the backpressure information to the user of <code class="idl"><a data-link-type="idl" href="#sendstream" id="ref-for-sendstream①⓪">SendStream</a></code>. This also means the <a data-link-type="dfn" href="http://www.ecma-international.org/ecma-262/6.0/index.html#sec-promise-objects" id="ref-for-sec-promise-objects②④">fulfillment</a> of the promise returned from this algorithm (or, <code class="idl"><a data-link-type="idl" href="https://streams.spec.whatwg.org/#default-writer-write" id="ref-for-default-writer-write">WritableStreamDefaultWriter.write</a></code>) does <strong>NOT</strong> necessarily mean that the chunk is acked by
+SHOULD have a fixed upper limit, to carry the backpressure information to the user of <code class="idl"><a data-link-type="idl" href="#webtransportsendstream" id="ref-for-webtransportsendstream①③">WebTransportSendStream</a></code>. This also means the <a data-link-type="dfn" href="http://www.ecma-international.org/ecma-262/6.0/index.html#sec-promise-objects" id="ref-for-sec-promise-objects②⑤">fulfillment</a> of the promise returned from this algorithm (or, <code class="idl"><a data-link-type="idl" href="https://streams.spec.whatwg.org/#default-writer-write" id="ref-for-default-writer-write">WritableStreamDefaultWriter.write</a></code>) does <strong>NOT</strong> necessarily mean that the chunk is acked by
 the server <a data-link-type="biblio" href="#biblio-quic">[QUIC]</a>. It may just mean that the chunk is appended to the buffer. To make sure that
 the chunk arrives at the server, use an application-level protocol.</p>
    </div>
-   <div class="algorithm" data-algorithm="close" data-algorithm-for="SendStream">
-     To <dfn class="dfn-paneled" data-dfn-for="SendStream" data-dfn-type="dfn" data-noexport id="sendstream-close">close</dfn> a <code class="idl"><a data-link-type="idl" href="#sendstream" id="ref-for-sendstream①①">SendStream</a></code> <var>stream</var>, run these steps: 
+   <div class="algorithm" data-algorithm="close" data-algorithm-for="WebTransportSendStream">
+     To <dfn class="dfn-paneled" data-dfn-for="WebTransportSendStream" data-dfn-type="dfn" data-noexport id="webtransportsendstream-close">close</dfn> a <code class="idl"><a data-link-type="idl" href="#webtransportsendstream" id="ref-for-webtransportsendstream①④">WebTransportSendStream</a></code> <var>stream</var>, run these steps: 
     <ol>
      <li data-md>
-      <p>Let <var>transport</var> be <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-sendstream-transport-slot" id="ref-for-dom-sendstream-transport-slot②">[[Transport]]</a></code>.</p>
+      <p>Let <var>transport</var> be <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-webtransportsendstream-transport-slot" id="ref-for-dom-webtransportsendstream-transport-slot②">[[Transport]]</a></code>.</p>
      <li data-md>
       <p>Let <var>promise</var> be a new promise.</p>
      <li data-md>
       <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-remove" id="ref-for-list-remove">Remove</a> <var>stream</var> from <var>transport</var>.<code class="idl"><a data-link-type="idl" href="#dom-webtransport-sendstreams-slot" id="ref-for-dom-webtransport-sendstreams-slot⑤">[[SendStreams]]</a></code>.</p>
      <li data-md>
-      <p>Set <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-sendstream-pendingoperation-slot" id="ref-for-dom-sendstream-pendingoperation-slot⑥">[[PendingOperation]]</a></code> to <var>promise</var>.</p>
+      <p>Set <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-webtransportsendstream-pendingoperation-slot" id="ref-for-dom-webtransportsendstream-pendingoperation-slot⑥">[[PendingOperation]]</a></code> to <var>promise</var>.</p>
      <li data-md>
-      <p>Return <var>promise</var> and run the remaining steps <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel①⓪">in parallel</a>.</p>
+      <p>Return <var>promise</var> and run the remaining steps <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel①①">in parallel</a>.</p>
      <li data-md>
-      <p><a data-link-type="dfn" href="#stream-send" id="ref-for-stream-send①">Send</a> FIN on <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-sendstream-internalstream-slot" id="ref-for-dom-sendstream-internalstream-slot②">[[InternalStream]]</a></code> and wait for the operation to
+      <p><a data-link-type="dfn" href="#stream-send" id="ref-for-stream-send①">Send</a> FIN on <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-webtransportsendstream-internalstream-slot" id="ref-for-dom-webtransportsendstream-internalstream-slot②">[[InternalStream]]</a></code> and wait for the operation to
  complete.</p>
      <li data-md>
-      <p>Wait for <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-sendstream-internalstream-slot" id="ref-for-dom-sendstream-internalstream-slot③">[[InternalStream]]</a></code> to enter the "Data Recvd" state. <a data-link-type="biblio" href="#biblio-quic">[QUIC]</a></p>
+      <p>Wait for <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-webtransportsendstream-internalstream-slot" id="ref-for-dom-webtransportsendstream-internalstream-slot③">[[InternalStream]]</a></code> to enter the "Data Recvd" state. <a data-link-type="biblio" href="#biblio-quic">[QUIC]</a></p>
      <li data-md>
-      <p><a data-link-type="dfn" href="#webtransport-queue-a-network-task" id="ref-for-webtransport-queue-a-network-task①⑧">Queue a network task</a> with <var>transport</var> to run these steps:</p>
+      <p><a data-link-type="dfn" href="#webtransport-queue-a-network-task" id="ref-for-webtransport-queue-a-network-task①⑨">Queue a network task</a> with <var>transport</var> to run these steps:</p>
       <ol>
        <li data-md>
-        <p>Set <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-sendstream-pendingoperation-slot" id="ref-for-dom-sendstream-pendingoperation-slot⑦">[[PendingOperation]]</a></code> to null.</p>
+        <p>Set <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-webtransportsendstream-pendingoperation-slot" id="ref-for-dom-webtransportsendstream-pendingoperation-slot⑦">[[PendingOperation]]</a></code> to null.</p>
        <li data-md>
-        <p><a data-link-type="dfn" href="http://www.ecma-international.org/ecma-262/6.0/index.html#sec-promise-objects" id="ref-for-sec-promise-objects②⑤">Resolve</a> <var>promise</var> with undefined.</p>
+        <p><a data-link-type="dfn" href="http://www.ecma-international.org/ecma-262/6.0/index.html#sec-promise-objects" id="ref-for-sec-promise-objects②⑥">Resolve</a> <var>promise</var> with undefined.</p>
       </ol>
     </ol>
    </div>
-   <div class="algorithm" data-algorithm="abort" data-algorithm-for="SendStream">
-     To <dfn class="dfn-paneled" data-dfn-for="SendStream" data-dfn-type="dfn" data-noexport id="sendstream-abort">abort</dfn> a <code class="idl"><a data-link-type="idl" href="#sendstream" id="ref-for-sendstream①②">SendStream</a></code> <var>stream</var> with <var>reason</var>, run these steps: 
+   <div class="algorithm" data-algorithm="abort" data-algorithm-for="WebTransportSendStream">
+     To <dfn class="dfn-paneled" data-dfn-for="WebTransportSendStream" data-dfn-type="dfn" data-noexport id="webtransportsendstream-abort">abort</dfn> a <code class="idl"><a data-link-type="idl" href="#webtransportsendstream" id="ref-for-webtransportsendstream①⑤">WebTransportSendStream</a></code> <var>stream</var> with <var>reason</var>, run these steps: 
     <ol>
      <li data-md>
-      <p>Let <var>transport</var> be <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-sendstream-transport-slot" id="ref-for-dom-sendstream-transport-slot③">[[Transport]]</a></code>.</p>
+      <p>Let <var>transport</var> be <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-webtransportsendstream-transport-slot" id="ref-for-dom-webtransportsendstream-transport-slot③">[[Transport]]</a></code>.</p>
      <li data-md>
       <p>Let <var>promise</var> be a new promise.</p>
      <li data-md>
@@ -2213,25 +2252,25 @@ <h3 class="heading settled" data-level="6.2" id="send-stream-procedures"><span c
       <p class="note" role="note"><span>Note:</span> Valid values of <var>code</var> are from 0 to 255 inclusive. The code will be encoded to a number in
        [0x52e4a40fa8db, 0x52e4a40fa9e2] as decribed in <a data-link-type="biblio" href="#biblio-web-transport-http3">[WEB-TRANSPORT-HTTP3]</a>.</p>
      <li data-md>
-      <p>Return <var>promise</var> and run the remaining steps <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel①①">in parallel</a>.</p>
+      <p>Return <var>promise</var> and run the remaining steps <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel①②">in parallel</a>.</p>
      <li data-md>
-      <p><a data-link-type="dfn" href="#stream-reset" id="ref-for-stream-reset①">Reset</a> <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-sendstream-internalstream-slot" id="ref-for-dom-sendstream-internalstream-slot④">[[InternalStream]]</a></code> with <var>code</var>.</p>
+      <p><a data-link-type="dfn" href="#stream-reset" id="ref-for-stream-reset①">Reset</a> <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-webtransportsendstream-internalstream-slot" id="ref-for-dom-webtransportsendstream-internalstream-slot④">[[InternalStream]]</a></code> with <var>code</var>.</p>
      <li data-md>
-      <p><a data-link-type="dfn" href="#webtransport-queue-a-network-task" id="ref-for-webtransport-queue-a-network-task①⑨">Queue a network task</a> with <var>transport</var> to <a data-link-type="dfn" href="http://www.ecma-international.org/ecma-262/6.0/index.html#sec-promise-objects" id="ref-for-sec-promise-objects②⑥">resolve</a> <var>promise</var> with undefined.</p>
+      <p><a data-link-type="dfn" href="#webtransport-queue-a-network-task" id="ref-for-webtransport-queue-a-network-task②⓪">Queue a network task</a> with <var>transport</var> to <a data-link-type="dfn" href="http://www.ecma-international.org/ecma-262/6.0/index.html#sec-promise-objects" id="ref-for-sec-promise-objects②⑦">resolve</a> <var>promise</var> with undefined.</p>
     </ol>
    </div>
-   <h3 class="heading settled" data-level="6.3" id="send-stream-STOP_SENDING"><span class="secno">6.3. </span><span class="content">STOP_SENDING signal coming from the server</span><a class="self-link" href="#send-stream-STOP_SENDING"></a></h3>
+   <h3 class="heading settled" data-level="6.4" id="send-stream-STOP_SENDING"><span class="secno">6.4. </span><span class="content">STOP_SENDING signal coming from the server</span><a class="self-link" href="#send-stream-STOP_SENDING"></a></h3>
    <div class="algorithm" data-algorithm="STOP_SENDING signal">
-     Whenever a <a data-link-type="dfn" href="#webtransport-stream" id="ref-for-webtransport-stream⑧">WebTransport stream</a> associated with a <code class="idl"><a data-link-type="idl" href="#sendstream" id="ref-for-sendstream①③">SendStream</a></code> <var>stream</var> gets a <a data-link-type="dfn" href="#stream-signal-stop_sending" id="ref-for-stream-signal-stop_sending">STOP_SENDING</a> signal from the server, run these steps: 
+     Whenever a <a data-link-type="dfn" href="#webtransport-stream" id="ref-for-webtransport-stream⑧">WebTransport stream</a> associated with a <code class="idl"><a data-link-type="idl" href="#webtransportsendstream" id="ref-for-webtransportsendstream①⑥">WebTransportSendStream</a></code> <var>stream</var> gets a <a data-link-type="dfn" href="#stream-signal-stop_sending" id="ref-for-stream-signal-stop_sending">STOP_SENDING</a> signal from the server, run these steps: 
     <ol>
      <li data-md>
-      <p>Let <var>transport</var> be <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-sendstream-transport-slot" id="ref-for-dom-sendstream-transport-slot④">[[Transport]]</a></code>.</p>
+      <p>Let <var>transport</var> be <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-webtransportsendstream-transport-slot" id="ref-for-dom-webtransportsendstream-transport-slot④">[[Transport]]</a></code>.</p>
      <li data-md>
       <p>Let <var>code</var> be the application protocol error code attached to the STOP_SENDING frame. <a data-link-type="biblio" href="#biblio-quic">[QUIC]</a></p>
       <p class="note" role="note"><span>Note:</span> Valid values of <var>code</var> are from 0 to 255 inclusive. The code has been decoded from a number in
        [0x52e4a40fa8db, 0x52e4a40fa9e2] as decribed in <a data-link-type="biblio" href="#biblio-web-transport-http3">[WEB-TRANSPORT-HTTP3]</a>.</p>
      <li data-md>
-      <p><a data-link-type="dfn" href="#webtransport-queue-a-network-task" id="ref-for-webtransport-queue-a-network-task②⓪">Queue a network task</a> with <var>transport</var> to run these steps:</p>
+      <p><a data-link-type="dfn" href="#webtransport-queue-a-network-task" id="ref-for-webtransport-queue-a-network-task②①">Queue a network task</a> with <var>transport</var> to run these steps:</p>
       <ol>
        <li data-md>
         <p>If <var>transport</var>.<code class="idl"><a data-link-type="idl" href="#dom-webtransport-state-slot" id="ref-for-dom-webtransport-state-slot③⑤">[[State]]</a></code> is <code>"closed"</code> or <code>"failed"</code>, abort these steps.</p>
@@ -2246,15 +2285,86 @@ <h3 class="heading settled" data-level="6.3" id="send-stream-STOP_SENDING"><span
       </ol>
     </ol>
    </div>
-   <h2 class="heading settled" data-level="7" id="receive-stream"><span class="secno">7. </span><span class="content"><code>ReceiveStream</code></span><a class="self-link" href="#receive-stream"></a></h2>
-   <p>In this spec, we call a <code class="idl"><a data-link-type="idl" href="https://streams.spec.whatwg.org/#readablestream" id="ref-for-readablestream①④">ReadableStream</a></code> providing incoming streaming features with an <a data-link-type="dfn" href="#stream-incoming-unidirectional" id="ref-for-stream-incoming-unidirectional③">incoming
-unidirectional</a> or <a data-link-type="dfn" href="#stream-bidirectional" id="ref-for-stream-bidirectional⑦">bidirectional</a> <a data-link-type="dfn" href="#webtransport-stream" id="ref-for-webtransport-stream⑨">WebTransport stream</a> a <dfn class="dfn-paneled idl-code" data-dfn-type="interface" data-export id="receivestream"><code>ReceiveStream</code></dfn>.</p>
-   <p>A <code class="idl"><a data-link-type="idl" href="#receivestream" id="ref-for-receivestream④">ReceiveStream</a></code> is a <code class="idl"><a data-link-type="idl" href="https://streams.spec.whatwg.org/#readablestream" id="ref-for-readablestream①⑤">ReadableStream</a></code> of <code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#idl-Uint8Array" id="ref-for-idl-Uint8Array②">Uint8Array</a></code> that can be read from, to consume
-data received from the server. <code class="idl"><a data-link-type="idl" href="#receivestream" id="ref-for-receivestream⑤">ReceiveStream</a></code> is a <a data-link-type="dfn" href="https://streams.spec.whatwg.org/#readable-byte-stream" id="ref-for-readable-byte-stream">readable byte stream</a>, and hence it allows
+   <h3 class="heading settled" data-level="6.5" id="send-stream-stats"><span class="secno">6.5. </span><span class="content"><code>WebTransportSendStreamStats</code> Dictionary</span><a class="self-link" href="#send-stream-stats"></a></h3>
+   <p>The <dfn class="dfn-paneled idl-code" data-dfn-type="dictionary" data-export id="dictdef-webtransportsendstreamstats"><code>WebTransportSendStreamStats</code></dfn> dictionary includes information
+on stats specific to one <code class="idl"><a data-link-type="idl" href="#webtransportsendstream" id="ref-for-webtransportsendstream①⑦">WebTransportSendStream</a></code>.</p>
+<pre class="idl highlight def"><c- b>dictionary</c-> <a class="idl-code" data-link-type="dictionary" href="#dictdef-webtransportsendstreamstats" id="ref-for-dictdef-webtransportsendstreamstats②"><c- g>WebTransportSendStreamStats</c-></a> {
+  <a data-link-type="idl-name" href="https://www.w3.org/TR/hr-time-2/#dom-domhighrestimestamp" id="ref-for-dom-domhighrestimestamp①⓪"><c- n>DOMHighResTimeStamp</c-></a> <a class="idl-code" data-link-type="dict-member" data-type="DOMHighResTimeStamp " href="#dom-webtransportsendstreamstats-timestamp" id="ref-for-dom-webtransportsendstreamstats-timestamp"><c- g>timestamp</c-></a>;
+  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-unsigned-long-long" id="ref-for-idl-unsigned-long-long①⑥"><c- b>unsigned</c-> <c- b>long</c-> <c- b>long</c-></a> <a class="idl-code" data-link-type="dict-member" data-type="unsigned long long " href="#dom-webtransportsendstreamstats-byteswritten" id="ref-for-dom-webtransportsendstreamstats-byteswritten"><c- g>bytesWritten</c-></a>;
+  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-unsigned-long-long" id="ref-for-idl-unsigned-long-long①⑦"><c- b>unsigned</c-> <c- b>long</c-> <c- b>long</c-></a> <a class="idl-code" data-link-type="dict-member" data-type="unsigned long long " href="#dom-webtransportsendstreamstats-bytessent" id="ref-for-dom-webtransportsendstreamstats-bytessent"><c- g>bytesSent</c-></a>;
+  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-unsigned-long-long" id="ref-for-idl-unsigned-long-long①⑧"><c- b>unsigned</c-> <c- b>long</c-> <c- b>long</c-></a> <a class="idl-code" data-link-type="dict-member" data-type="unsigned long long " href="#dom-webtransportsendstreamstats-bytesacknowledged" id="ref-for-dom-webtransportsendstreamstats-bytesacknowledged"><c- g>bytesAcknowledged</c-></a>;
+};
+</pre>
+   <p>The dictionary SHALL have the following attributes:</p>
+   <dl>
+    <dt data-md><dfn class="dfn-paneled idl-code" data-dfn-for="WebTransportSendStreamStats" data-dfn-type="dict-member" data-export id="dom-webtransportsendstreamstats-timestamp"><code>timestamp</code></dfn>, <span> of type <a data-link-type="idl-name" href="https://www.w3.org/TR/hr-time-2/#dom-domhighrestimestamp" id="ref-for-dom-domhighrestimestamp①①">DOMHighResTimeStamp</a></span>
+    <dd data-md>
+     <p>The <code>timestamp</code> for when the stats are gathered, relative to the
+ UNIX epoch (Jan 1, 1970, UTC).</p>
+    <dt data-md><dfn class="dfn-paneled idl-code" data-dfn-for="WebTransportSendStreamStats" data-dfn-type="dict-member" data-export id="dom-webtransportsendstreamstats-byteswritten"><code>bytesWritten</code></dfn>, <span> of type <a data-link-type="idl-name" href="https://webidl.spec.whatwg.org/#idl-unsigned-long-long" id="ref-for-idl-unsigned-long-long①⑨">unsigned long long</a></span>
+    <dd data-md>
+     <p>The total number of bytes the application has successfully written to this <code class="idl"><a data-link-type="idl" href="#webtransportsendstream" id="ref-for-webtransportsendstream①⑧">WebTransportSendStream</a></code>. This number can only increase.</p>
+    <dt data-md><dfn class="dfn-paneled idl-code" data-dfn-for="WebTransportSendStreamStats" data-dfn-type="dict-member" data-export id="dom-webtransportsendstreamstats-bytessent"><code>bytesSent</code></dfn>, <span> of type <a data-link-type="idl-name" href="https://webidl.spec.whatwg.org/#idl-unsigned-long-long" id="ref-for-idl-unsigned-long-long②⓪">unsigned long long</a></span>
+    <dd data-md>
+     <p>An indicator of progress on how many of the application bytes written to this <code class="idl"><a data-link-type="idl" href="#webtransportsendstream" id="ref-for-webtransportsendstream①⑨">WebTransportSendStream</a></code> has been sent at least once. This
+ number can only increase, and is always less than or equal to <code class="idl"><a data-link-type="idl" href="#dom-webtransportsendstreamstats-byteswritten" id="ref-for-dom-webtransportsendstreamstats-byteswritten①">bytesWritten</a></code>.</p>
+     <p class="note" role="note"><span>Note:</span> this is progress of app data sent on a single stream only, and does not
+ include any network overhead.</p>
+    <dt data-md><dfn class="dfn-paneled idl-code" data-dfn-for="WebTransportSendStreamStats" data-dfn-type="dict-member" data-export id="dom-webtransportsendstreamstats-bytesacknowledged"><code>bytesAcknowledged</code></dfn>, <span> of type <a data-link-type="idl-name" href="https://webidl.spec.whatwg.org/#idl-unsigned-long-long" id="ref-for-idl-unsigned-long-long②①">unsigned long long</a></span>
+    <dd data-md>
+     <p>An indicator of progress on how many of the application bytes written to this <code class="idl"><a data-link-type="idl" href="#webtransportsendstream" id="ref-for-webtransportsendstream②⓪">WebTransportSendStream</a></code> have been sent and acknowledged as received by
+ the server using QUIC’s ACK mechanism. Only sequential bytes up to, but not
+ including, the first non-acknowledged byte, are counted. This number can only
+ increase and is always less than or equal to <code class="idl"><a data-link-type="idl" href="#dom-webtransportsendstreamstats-bytessent" id="ref-for-dom-webtransportsendstreamstats-bytessent①">bytesSent</a></code>.</p>
+     <p class="note" role="note"><span>Note:</span> This value will match <code class="idl"><a data-link-type="idl" href="#dom-webtransportsendstreamstats-bytessent" id="ref-for-dom-webtransportsendstreamstats-bytessent②">bytesSent</a></code> when
+ the connection is over HTTP/2.</p>
+   </dl>
+   <h2 class="heading settled" data-level="7" id="receive-stream"><span class="secno">7. </span><span class="content">Interface <code>WebTransportReceiveStream</code></span><a class="self-link" href="#receive-stream"></a></h2>
+   <p>A <code class="idl"><a data-link-type="idl" href="#webtransportreceivestream" id="ref-for-webtransportreceivestream④">WebTransportReceiveStream</a></code> is a <code class="idl"><a data-link-type="idl" href="https://streams.spec.whatwg.org/#readablestream" id="ref-for-readablestream①④">ReadableStream</a></code> providing incoming streaming
+features with an <a data-link-type="dfn" href="#stream-incoming-unidirectional" id="ref-for-stream-incoming-unidirectional③">incoming unidirectional</a> or <a data-link-type="dfn" href="#stream-bidirectional" id="ref-for-stream-bidirectional⑦">bidirectional</a> <a data-link-type="dfn" href="#webtransport-stream" id="ref-for-webtransport-stream⑨">WebTransport stream</a>.</p>
+   <p>It is a <code class="idl"><a data-link-type="idl" href="https://streams.spec.whatwg.org/#readablestream" id="ref-for-readablestream①⑤">ReadableStream</a></code> of <code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#idl-Uint8Array" id="ref-for-idl-Uint8Array③">Uint8Array</a></code> that can be read from, to consume
+data received from the server. <code class="idl"><a data-link-type="idl" href="#webtransportreceivestream" id="ref-for-webtransportreceivestream⑤">WebTransportReceiveStream</a></code> is a <a data-link-type="dfn" href="https://streams.spec.whatwg.org/#readable-byte-stream" id="ref-for-readable-byte-stream">readable byte stream</a>,
+and hence it allows
 its consumers to use a <a data-link-type="dfn" href="https://streams.spec.whatwg.org/#byob-reader" id="ref-for-byob-reader">BYOB reader</a> as well as a <a data-link-type="dfn" href="https://streams.spec.whatwg.org/#default-reader" id="ref-for-default-reader">default reader</a>.</p>
-   <p class="note" role="note"><span>Note:</span> <code class="idl"><a data-link-type="idl" href="#receivestream" id="ref-for-receivestream⑥">ReceiveStream</a></code> is not a Web IDL type. A <code class="idl"><a data-link-type="idl" href="#receivestream" id="ref-for-receivestream⑦">ReceiveStream</a></code> is always created by the <a data-link-type="dfn" href="#receivestream-create" id="ref-for-receivestream-create①">create</a> procedure.</p>
-   <h3 class="heading settled" data-level="7.1" id="receive-stream-internal-slots"><span class="secno">7.1. </span><span class="content">Internal Slots</span><a class="self-link" href="#receive-stream-internal-slots"></a></h3>
-   <p>A <code class="idl"><a data-link-type="idl" href="#receivestream" id="ref-for-receivestream⑧">ReceiveStream</a></code> has the following internal slots.</p>
+   <p>A <code class="idl"><a data-link-type="idl" href="#webtransportreceivestream" id="ref-for-webtransportreceivestream⑥">WebTransportReceiveStream</a></code> is always created by the <a data-link-type="dfn" href="#webtransportreceivestream-create" id="ref-for-webtransportreceivestream-create①">create</a> procedure.</p>
+<pre class="idl highlight def">[<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#Exposed" id="ref-for-Exposed③"><c- g>Exposed</c-></a>=(<c- n>Window</c->,<c- n>Worker</c->), <a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#SecureContext" id="ref-for-SecureContext③"><c- g>SecureContext</c-></a>]
+<c- b>interface</c-> <dfn class="dfn-paneled idl-code" data-dfn-type="interface" data-export id="webtransportreceivestream"><code><c- g>WebTransportReceiveStream</c-></code></dfn> : <a data-link-type="idl-name" href="https://streams.spec.whatwg.org/#readablestream" id="ref-for-readablestream①⑥"><c- n>ReadableStream</c-></a> {
+  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise⑥"><c- b>Promise</c-></a>&lt;<a data-link-type="idl-name" href="#dictdef-webtransportreceivestreamstats" id="ref-for-dictdef-webtransportreceivestreamstats"><c- n>WebTransportReceiveStreamStats</c-></a>> <a class="idl-code" data-link-type="method" href="#dom-webtransportreceivestream-getstats" id="ref-for-dom-webtransportreceivestream-getstats"><c- g>getStats</c-></a>();
+};
+</pre>
+   <p>A <code class="idl"><a data-link-type="idl" href="#webtransportreceivestream" id="ref-for-webtransportreceivestream⑦">WebTransportReceiveStream</a></code> is always created by the <a data-link-type="dfn" href="#webtransportreceivestream-create" id="ref-for-webtransportreceivestream-create②">create</a> procedure.</p>
+   <h3 class="heading settled" data-level="7.1" id="receive-stream-methods"><span class="secno">7.1. </span><span class="content">Methods</span><a class="self-link" href="#receive-stream-methods"></a></h3>
+   <dl>
+    <dt data-md><dfn class="dfn-paneled idl-code" data-dfn-for="WebTransportReceiveStream" data-dfn-type="method" data-export id="dom-webtransportreceivestream-getstats"><code>getStats()</code></dfn>
+    <dd data-md>
+     <p>Gathers stats specific to this <code class="idl"><a data-link-type="idl" href="#webtransportreceivestream" id="ref-for-webtransportreceivestream⑧">WebTransportReceiveStream</a></code>'s performance,
+ and reports the result asynchronously.</p>
+     <p></p>
+     <p>When getStats is called, the user agent MUST run the following steps:</p>
+     <ol>
+      <li data-md>
+       <p>Let <var>p</var> be a new promise.</p>
+      <li data-md>
+       <p>Return <var>p</var> and continue the following steps <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel①③">in parallel</a>.</p>
+       <ol>
+        <li data-md>
+         <p>Gather the stats specific to this <code class="idl"><a data-link-type="idl" href="#webtransportreceivestream" id="ref-for-webtransportreceivestream⑨">WebTransportReceiveStream</a></code>.</p>
+        <li data-md>
+         <p>Wait for the stats to be ready.</p>
+        <li data-md>
+         <p><a data-link-type="dfn" href="#webtransport-queue-a-network-task" id="ref-for-webtransport-queue-a-network-task②②">Queue a network task</a> with <var>transport</var> to run the following steps:</p>
+         <ol>
+          <li data-md>
+           <p>Let <var>stats</var> be a <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#new" id="ref-for-new⑦">new</a> <code class="idl"><a data-link-type="idl" href="#dictdef-webtransportreceivestreamstats" id="ref-for-dictdef-webtransportreceivestreamstats①">WebTransportReceiveStreamStats</a></code> object
+  representing the gathered stats.</p>
+          <li data-md>
+           <p><a data-link-type="dfn" href="http://www.ecma-international.org/ecma-262/6.0/index.html#sec-promise-objects" id="ref-for-sec-promise-objects②⑧">Resolve</a> <var>p</var> with <var>stats</var>.</p>
+         </ol>
+       </ol>
+     </ol>
+   </dl>
+   <h3 class="heading settled" data-level="7.2" id="receive-stream-internal-slots"><span class="secno">7.2. </span><span class="content">Internal Slots</span><a class="self-link" href="#receive-stream-internal-slots"></a></h3>
+   <p>A <code class="idl"><a data-link-type="idl" href="#webtransportreceivestream" id="ref-for-webtransportreceivestream①⓪">WebTransportReceiveStream</a></code> has the following internal slots.</p>
    <table class="data">
     <thead>
      <tr>
@@ -2262,32 +2372,30 @@ <h3 class="heading settled" data-level="7.1" id="receive-stream-internal-slots">
       <th>Description (<em>non-normative</em>) 
     <tbody>
      <tr>
-      <td><dfn class="dfn-paneled idl-code" data-dfn-for="ReceiveStream" data-dfn-type="attribute" data-export id="dom-receivestream-internalstream-slot"><code>[[InternalStream]]</code></dfn> 
+      <td><dfn class="dfn-paneled idl-code" data-dfn-for="WebTransportReceiveStream" data-dfn-type="attribute" data-export id="dom-webtransportreceivestream-internalstream-slot"><code>[[InternalStream]]</code></dfn> 
       <td class="non-normative">An <a data-link-type="dfn" href="#stream-incoming-unidirectional" id="ref-for-stream-incoming-unidirectional④">incoming unidirectional</a> or <a data-link-type="dfn" href="#stream-bidirectional" id="ref-for-stream-bidirectional⑧">bidirectional</a> <a data-link-type="dfn" href="#webtransport-stream" id="ref-for-webtransport-stream①⓪">WebTransport stream</a>. 
      <tr>
-      <td><dfn class="dfn-paneled idl-code" data-dfn-for="ReceiveStream" data-dfn-type="attribute" data-export id="dom-receivestream-transport-slot"><code>[[Transport]]</code></dfn> 
-      <td class="non-normative">The <code class="idl"><a data-link-type="idl" href="#webtransport" id="ref-for-webtransport②⑥">WebTransport</a></code> object owning this <code class="idl"><a data-link-type="idl" href="#receivestream" id="ref-for-receivestream⑨">ReceiveStream</a></code>. 
+      <td><dfn class="dfn-paneled idl-code" data-dfn-for="WebTransportReceiveStream" data-dfn-type="attribute" data-export id="dom-webtransportreceivestream-transport-slot"><code>[[Transport]]</code></dfn> 
+      <td class="non-normative">The <code class="idl"><a data-link-type="idl" href="#webtransport" id="ref-for-webtransport②⑥">WebTransport</a></code> object owning this <code class="idl"><a data-link-type="idl" href="#webtransportreceivestream" id="ref-for-webtransportreceivestream①①">WebTransportReceiveStream</a></code>. 
    </table>
-   <p class="note" role="note"><span>Note:</span> These internal slots need to be attached to <code class="idl"><a data-link-type="idl" href="#receivestream" id="ref-for-receivestream①⓪">ReceiveStream</a></code> (which is a kind of <code class="idl"><a data-link-type="idl" href="https://streams.spec.whatwg.org/#readablestream" id="ref-for-readablestream①⑥">ReadableStream</a></code>) conceptually, not physically. For example, an implementation could place them on
-an object which is referenced from <var>pullAlgorithm</var> and <var>cancelAlgorithm</var> in the <a data-link-type="dfn" href="#receivestream-create" id="ref-for-receivestream-create②">create</a> procedure.</p>
-   <h3 class="heading settled" data-level="7.2" id="receive-stream-procedures"><span class="secno">7.2. </span><span class="content">Procedures</span><a class="self-link" href="#receive-stream-procedures"></a></h3>
-   <div class="algorithm" data-algorithm="create" data-algorithm-for="ReceiveStream">
-    <p>To <dfn class="dfn-paneled" data-dfn-for="ReceiveStream" data-dfn-type="dfn" data-export data-lt="create|creating" id="receivestream-create">create</dfn> a <code class="idl"><a data-link-type="idl" href="#receivestream" id="ref-for-receivestream①①">ReceiveStream</a></code>, with an <a data-link-type="dfn" href="#stream-incoming-unidirectional" id="ref-for-stream-incoming-unidirectional⑤">incoming unidirectional</a> or <a data-link-type="dfn" href="#stream-bidirectional" id="ref-for-stream-bidirectional⑨">bidirectional</a> <a data-link-type="dfn" href="#webtransport-stream" id="ref-for-webtransport-stream①①">WebTransport stream</a> <var>internalStream</var> and a <code class="idl"><a data-link-type="idl" href="#webtransport" id="ref-for-webtransport②⑦">WebTransport</a></code> <var>transport</var>, run these steps:</p>
+   <h3 class="heading settled" data-level="7.3" id="receive-stream-procedures"><span class="secno">7.3. </span><span class="content">Procedures</span><a class="self-link" href="#receive-stream-procedures"></a></h3>
+   <div class="algorithm" data-algorithm="create" data-algorithm-for="WebTransportReceiveStream">
+    <p>To <dfn class="dfn-paneled" data-dfn-for="WebTransportReceiveStream" data-dfn-type="dfn" data-export data-lt="create|creating" id="webtransportreceivestream-create">create</dfn> a <code class="idl"><a data-link-type="idl" href="#webtransportreceivestream" id="ref-for-webtransportreceivestream①②">WebTransportReceiveStream</a></code>, with an <a data-link-type="dfn" href="#stream-incoming-unidirectional" id="ref-for-stream-incoming-unidirectional⑤">incoming unidirectional</a> or <a data-link-type="dfn" href="#stream-bidirectional" id="ref-for-stream-bidirectional⑨">bidirectional</a> <a data-link-type="dfn" href="#webtransport-stream" id="ref-for-webtransport-stream①①">WebTransport stream</a> <var>internalStream</var> and a <code class="idl"><a data-link-type="idl" href="#webtransport" id="ref-for-webtransport②⑦">WebTransport</a></code> <var>transport</var>, run these steps:</p>
     <ol>
      <li data-md>
-      <p>Let <var>stream</var> be a <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#new" id="ref-for-new⑥">new</a> <code class="idl"><a data-link-type="idl" href="https://streams.spec.whatwg.org/#readablestream" id="ref-for-readablestream①⑦">ReadableStream</a></code>, with:</p>
+      <p>Let <var>stream</var> be a <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#new" id="ref-for-new⑧">new</a> <code class="idl"><a data-link-type="idl" href="#webtransportreceivestream" id="ref-for-webtransportreceivestream①③">WebTransportReceiveStream</a></code>, with:</p>
       <dl>
-       <dt data-md><code class="idl"><a data-link-type="idl" href="#dom-receivestream-internalstream-slot" id="ref-for-dom-receivestream-internalstream-slot">[[InternalStream]]</a></code>
+       <dt data-md><code class="idl"><a data-link-type="idl" href="#dom-webtransportreceivestream-internalstream-slot" id="ref-for-dom-webtransportreceivestream-internalstream-slot">[[InternalStream]]</a></code>
        <dd data-md>
         <p><var>internalStream</var></p>
-       <dt data-md><code class="idl"><a data-link-type="idl" href="#dom-receivestream-transport-slot" id="ref-for-dom-receivestream-transport-slot">[[Transport]]</a></code>
+       <dt data-md><code class="idl"><a data-link-type="idl" href="#dom-webtransportreceivestream-transport-slot" id="ref-for-dom-webtransportreceivestream-transport-slot">[[Transport]]</a></code>
        <dd data-md>
         <p><var>transport</var></p>
       </dl>
      <li data-md>
-      <p>Let <var>pullAlgorithm</var> be an action that <a data-link-type="dfn" href="#receivestream-pull-bytes" id="ref-for-receivestream-pull-bytes">pulls bytes</a> from <var>stream</var>.</p>
+      <p>Let <var>pullAlgorithm</var> be an action that <a data-link-type="dfn" href="#webtransportreceivestream-pull-bytes" id="ref-for-webtransportreceivestream-pull-bytes">pulls bytes</a> from <var>stream</var>.</p>
      <li data-md>
-      <p>Let <var>cancelAlgorithm</var> be an action that <a data-link-type="dfn" href="#receivestream-cancel" id="ref-for-receivestream-cancel">cancels</a> <var>stream</var> with <var>reason</var>, given <var>reason</var>.</p>
+      <p>Let <var>cancelAlgorithm</var> be an action that <a data-link-type="dfn" href="#webtransportreceivestream-cancel" id="ref-for-webtransportreceivestream-cancel">cancels</a> <var>stream</var> with <var>reason</var>, given <var>reason</var>.</p>
      <li data-md>
       <p><a data-link-type="dfn" href="https://streams.spec.whatwg.org/#readablestream-set-up-with-byte-reading-support" id="ref-for-readablestream-set-up-with-byte-reading-support">Set up with byte reading support</a> <var>stream</var> with <a data-link-type="dfn" href="https://streams.spec.whatwg.org/#readablestream-set-up-with-byte-reading-support-pullalgorithm" id="ref-for-readablestream-set-up-with-byte-reading-support-pullalgorithm">pullAlgorithm</a> set to <var>pullAlgorithm</var> and <a data-link-type="dfn" href="https://streams.spec.whatwg.org/#readablestream-set-up-with-byte-reading-support-cancelalgorithm" id="ref-for-readablestream-set-up-with-byte-reading-support-cancelalgorithm">cancelAlgorithm</a> set to <var>cancelAlgorithm</var>.</p>
      <li data-md>
@@ -2296,13 +2404,13 @@ <h3 class="heading settled" data-level="7.2" id="receive-stream-procedures"><spa
       <p>Return <var>stream</var>.</p>
     </ol>
    </div>
-   <div class="algorithm" data-algorithm="pull bytes" data-algorithm-for="ReceiveStream">
-    <p>To <dfn class="dfn-paneled" data-dfn-for="ReceiveStream" data-dfn-type="dfn" data-noexport id="receivestream-pull-bytes">pull bytes</dfn> from a <code class="idl"><a data-link-type="idl" href="#receivestream" id="ref-for-receivestream①②">ReceiveStream</a></code> <var>stream</var>, run these steps.</p>
+   <div class="algorithm" data-algorithm="pull bytes" data-algorithm-for="WebTransportReceiveStream">
+    <p>To <dfn class="dfn-paneled" data-dfn-for="WebTransportReceiveStream" data-dfn-type="dfn" data-noexport id="webtransportreceivestream-pull-bytes">pull bytes</dfn> from a <code class="idl"><a data-link-type="idl" href="#webtransportreceivestream" id="ref-for-webtransportreceivestream①④">WebTransportReceiveStream</a></code> <var>stream</var>, run these steps.</p>
     <ol>
      <li data-md>
-      <p>Let <var>transport</var> be <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-receivestream-transport-slot" id="ref-for-dom-receivestream-transport-slot①">[[Transport]]</a></code>.</p>
+      <p>Let <var>transport</var> be <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-webtransportreceivestream-transport-slot" id="ref-for-dom-webtransportreceivestream-transport-slot①">[[Transport]]</a></code>.</p>
      <li data-md>
-      <p>Let <var>internalStream</var> be <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-receivestream-internalstream-slot" id="ref-for-dom-receivestream-internalstream-slot①">[[InternalStream]]</a></code>.</p>
+      <p>Let <var>internalStream</var> be <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-webtransportreceivestream-internalstream-slot" id="ref-for-dom-webtransportreceivestream-internalstream-slot①">[[InternalStream]]</a></code>.</p>
      <li data-md>
       <p>Let <var>promise</var> be a new promise.</p>
      <li data-md>
@@ -2325,10 +2433,10 @@ <h3 class="heading settled" data-level="7.2" id="receive-stream-procedures"><spa
        <li data-md>
         <p>Set <var>maxBytes</var> to an <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#implementation-defined" id="ref-for-implementation-defined⑦">implementation-defined</a> size.</p>
        <li data-md>
-        <p>Set <var>buffer</var> be a <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#new" id="ref-for-new⑦">new</a> <code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#idl-ArrayBuffer" id="ref-for-idl-ArrayBuffer">ArrayBuffer</a></code> with <var>maxBytes</var> size. If allocating the <code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#idl-ArrayBuffer" id="ref-for-idl-ArrayBuffer①">ArrayBuffer</a></code> fails, return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-rejected-with" id="ref-for-a-promise-rejected-with②">a promise rejected with</a> a <code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#exceptiondef-rangeerror" id="ref-for-exceptiondef-rangeerror">RangeError</a></code>.</p>
+        <p>Set <var>buffer</var> be a <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#new" id="ref-for-new⑨">new</a> <code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#idl-ArrayBuffer" id="ref-for-idl-ArrayBuffer">ArrayBuffer</a></code> with <var>maxBytes</var> size. If allocating the <code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#idl-ArrayBuffer" id="ref-for-idl-ArrayBuffer①">ArrayBuffer</a></code> fails, return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-rejected-with" id="ref-for-a-promise-rejected-with②">a promise rejected with</a> a <code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#exceptiondef-rangeerror" id="ref-for-exceptiondef-rangeerror">RangeError</a></code>.</p>
       </ol>
      <li data-md>
-      <p>Return <var>promise</var> and run the remaining steps <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel①②">in parallel</a>.</p>
+      <p>Return <var>promise</var> and run the remaining steps <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel①④">in parallel</a>.</p>
      <li data-md>
       <p><a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#arraybuffer-write" id="ref-for-arraybuffer-write">Write</a> the bytes that area <a data-link-type="dfn" href="#stream-receive" id="ref-for-stream-receive">read</a> from <var>internalStream</var> into <var>buffer</var> with offset <var>offset</var>, up to <var>maxBytes</var> bytes. Wait until either at least one byte is
  read or FIN is received. Let <var>read</var> be the number of read bytes, and let <var>hasReceivedFIN</var> be
@@ -2341,7 +2449,7 @@ <h3 class="heading settled" data-level="7.2" id="receive-stream-procedures"><spa
       <p class="note" role="note"><span>Note:</span> We don’t reject <var>promise</var> here because we handle network errors elsewhere, and those steps
 error <var>stream</var> and reject the result of this read operation.</p>
      <li data-md>
-      <p><a data-link-type="dfn" href="#webtransport-queue-a-network-task" id="ref-for-webtransport-queue-a-network-task②①">Queue a network task</a> with <var>transport</var> to run these steps:</p>
+      <p><a data-link-type="dfn" href="#webtransport-queue-a-network-task" id="ref-for-webtransport-queue-a-network-task②③">Queue a network task</a> with <var>transport</var> to run these steps:</p>
       <p class="note" role="note"><span>Note:</span> If the buffer described above is available in the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-agent-event-loop" id="ref-for-concept-agent-event-loop">event loop</a> where this procedure is
  running, the following steps may run immediately.</p>
       <ol>
@@ -2349,7 +2457,7 @@ <h3 class="heading settled" data-level="7.2" id="receive-stream-procedures"><spa
         <p>If <var>read</var> > 0:</p>
         <ol>
          <li data-md>
-          <p>Set <var>view</var> to a new <code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#idl-Uint8Array" id="ref-for-idl-Uint8Array③">Uint8Array</a></code> with <var>buffer</var>, <var>offset</var> and <var>read</var>.</p>
+          <p>Set <var>view</var> to a new <code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#idl-Uint8Array" id="ref-for-idl-Uint8Array④">Uint8Array</a></code> with <var>buffer</var>, <var>offset</var> and <var>read</var>.</p>
          <li data-md>
           <p><a data-link-type="dfn" href="https://streams.spec.whatwg.org/#readablestream-enqueue" id="ref-for-readablestream-enqueue④">Enqueue</a> <var>view</var> into <var>stream</var>.</p>
         </ol>
@@ -2362,18 +2470,18 @@ <h3 class="heading settled" data-level="7.2" id="receive-stream-procedures"><spa
           <p><a data-link-type="dfn" href="https://streams.spec.whatwg.org/#readablestream-close" id="ref-for-readablestream-close②">Close</a> <var>stream</var>.</p>
         </ol>
        <li data-md>
-        <p><a data-link-type="dfn" href="http://www.ecma-international.org/ecma-262/6.0/index.html#sec-promise-objects" id="ref-for-sec-promise-objects②⑦">Resolve</a> <var>promise</var> with undefined.</p>
+        <p><a data-link-type="dfn" href="http://www.ecma-international.org/ecma-262/6.0/index.html#sec-promise-objects" id="ref-for-sec-promise-objects②⑨">Resolve</a> <var>promise</var> with undefined.</p>
       </ol>
     </ol>
    </div>
-   <div class="algorithm" data-algorithm="cancel" data-algorithm-for="ReceiveStream">
-    <p>To <dfn class="dfn-paneled" data-dfn-for="ReceiveStream" data-dfn-type="dfn" data-noexport id="receivestream-cancel">cancel</dfn> a <code class="idl"><a data-link-type="idl" href="#receivestream" id="ref-for-receivestream①③">ReceiveStream</a></code> <var>stream</var> with <var>reason</var>, run these
+   <div class="algorithm" data-algorithm="cancel" data-algorithm-for="WebTransportReceiveStream">
+    <p>To <dfn class="dfn-paneled" data-dfn-for="WebTransportReceiveStream" data-dfn-type="dfn" data-noexport id="webtransportreceivestream-cancel">cancel</dfn> a <code class="idl"><a data-link-type="idl" href="#webtransportreceivestream" id="ref-for-webtransportreceivestream①⑤">WebTransportReceiveStream</a></code> <var>stream</var> with <var>reason</var>, run these
 steps.</p>
     <ol>
      <li data-md>
-      <p>Let <var>transport</var> be <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-receivestream-transport-slot" id="ref-for-dom-receivestream-transport-slot②">[[Transport]]</a></code>.</p>
+      <p>Let <var>transport</var> be <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-webtransportreceivestream-transport-slot" id="ref-for-dom-webtransportreceivestream-transport-slot②">[[Transport]]</a></code>.</p>
      <li data-md>
-      <p>Let <var>internalStream</var> be <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-receivestream-internalstream-slot" id="ref-for-dom-receivestream-internalstream-slot②">[[InternalStream]]</a></code>.</p>
+      <p>Let <var>internalStream</var> be <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-webtransportreceivestream-internalstream-slot" id="ref-for-dom-webtransportreceivestream-internalstream-slot②">[[InternalStream]]</a></code>.</p>
      <li data-md>
       <p>Let <var>promise</var> be a new promise.</p>
      <li data-md>
@@ -2390,33 +2498,33 @@ <h3 class="heading settled" data-level="7.2" id="receive-stream-procedures"><spa
      <li data-md>
       <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-remove" id="ref-for-list-remove④">Remove</a> <var>stream</var> from <var>transport</var>.<code class="idl"><a data-link-type="idl" href="#dom-webtransport-sendstreams-slot" id="ref-for-dom-webtransport-sendstreams-slot⑧">[[SendStreams]]</a></code>.</p>
      <li data-md>
-      <p>Return <var>promise</var> and run the remaining steps <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel①③">in parallel</a>.</p>
+      <p>Return <var>promise</var> and run the remaining steps <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel①⑤">in parallel</a>.</p>
      <li data-md>
       <p><a data-link-type="dfn" href="#stream-send-stop_sending" id="ref-for-stream-send-stop_sending①">Send STOP_SENDING</a> with <var>internalStream</var> and <var>code</var>.</p>
      <li data-md>
-      <p><a data-link-type="dfn" href="#webtransport-queue-a-network-task" id="ref-for-webtransport-queue-a-network-task②②">Queue a network task</a> with <var>transport</var> to run these steps:</p>
+      <p><a data-link-type="dfn" href="#webtransport-queue-a-network-task" id="ref-for-webtransport-queue-a-network-task②④">Queue a network task</a> with <var>transport</var> to run these steps:</p>
       <p class="note" role="note"><span>Note:</span> If the buffer described above is available in the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-agent-event-loop" id="ref-for-concept-agent-event-loop①">event loop</a> where this procedure is
 running, the following steps may run immediately.</p>
       <ol>
        <li data-md>
         <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-remove" id="ref-for-list-remove⑤">Remove</a> <var>stream</var> from <var>transport</var>.<code class="idl"><a data-link-type="idl" href="#dom-webtransport-receivestreams-slot" id="ref-for-dom-webtransport-receivestreams-slot⑥">[[ReceiveStreams]]</a></code>.</p>
        <li data-md>
-        <p><a data-link-type="dfn" href="http://www.ecma-international.org/ecma-262/6.0/index.html#sec-promise-objects" id="ref-for-sec-promise-objects②⑧">Resolve</a> <var>promise</var> with undefined.</p>
+        <p><a data-link-type="dfn" href="http://www.ecma-international.org/ecma-262/6.0/index.html#sec-promise-objects" id="ref-for-sec-promise-objects③⓪">Resolve</a> <var>promise</var> with undefined.</p>
       </ol>
     </ol>
    </div>
-   <h3 class="heading settled" data-level="7.3" id="receive-stream-RESET_STREAM"><span class="secno">7.3. </span><span class="content">Reset signal coming from the server</span><a class="self-link" href="#receive-stream-RESET_STREAM"></a></h3>
+   <h3 class="heading settled" data-level="7.4" id="receive-stream-RESET_STREAM"><span class="secno">7.4. </span><span class="content">Reset signal coming from the server</span><a class="self-link" href="#receive-stream-RESET_STREAM"></a></h3>
    <div class="algorithm" data-algorithm="reset signal">
-     Whenever a <a data-link-type="dfn" href="#webtransport-stream" id="ref-for-webtransport-stream①②">WebTransport stream</a> associated with a <code class="idl"><a data-link-type="idl" href="#receivestream" id="ref-for-receivestream①④">ReceiveStream</a></code> <var>stream</var> gets a <a data-link-type="dfn" href="#stream-signal-reset" id="ref-for-stream-signal-reset">reset</a> signal from the server, run these steps: 
+     Whenever a <a data-link-type="dfn" href="#webtransport-stream" id="ref-for-webtransport-stream①②">WebTransport stream</a> associated with a <code class="idl"><a data-link-type="idl" href="#webtransportreceivestream" id="ref-for-webtransportreceivestream①⑥">WebTransportReceiveStream</a></code> <var>stream</var> gets a <a data-link-type="dfn" href="#stream-signal-reset" id="ref-for-stream-signal-reset">reset</a> signal from the server, run these steps: 
     <ol>
      <li data-md>
-      <p>Let <var>transport</var> be <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-receivestream-transport-slot" id="ref-for-dom-receivestream-transport-slot③">[[Transport]]</a></code>.</p>
+      <p>Let <var>transport</var> be <var>stream</var>.<code class="idl"><a data-link-type="idl" href="#dom-webtransportreceivestream-transport-slot" id="ref-for-dom-webtransportreceivestream-transport-slot③">[[Transport]]</a></code>.</p>
      <li data-md>
       <p>Let <var>code</var> be the application protocol error code attached to the RESET_STREAM frame. <a data-link-type="biblio" href="#biblio-quic">[QUIC]</a></p>
       <p class="note" role="note"><span>Note:</span> Valid values of <var>code</var> are from 0 to 255 inclusive. The code has been decoded from a number in
        [0x52e4a40fa8db, 0x52e4a40fa9e2] as decribed in <a data-link-type="biblio" href="#biblio-web-transport-http3">[WEB-TRANSPORT-HTTP3]</a>.</p>
      <li data-md>
-      <p><a data-link-type="dfn" href="#webtransport-queue-a-network-task" id="ref-for-webtransport-queue-a-network-task②③">Queue a network task</a> with <var>transport</var> to run these steps:</p>
+      <p><a data-link-type="dfn" href="#webtransport-queue-a-network-task" id="ref-for-webtransport-queue-a-network-task②⑤">Queue a network task</a> with <var>transport</var> to run these steps:</p>
       <ol>
        <li data-md>
         <p>If <var>transport</var>.<code class="idl"><a data-link-type="idl" href="#dom-webtransport-state-slot" id="ref-for-dom-webtransport-state-slot③⑥">[[State]]</a></code> is <code>"closed"</code> or <code>"failed"</code>, abort these steps.</p>
@@ -2431,11 +2539,39 @@ <h3 class="heading settled" data-level="7.3" id="receive-stream-RESET_STREAM"><s
       </ol>
     </ol>
    </div>
+   <h3 class="heading settled" data-level="7.5" id="receive-stream-stats"><span class="secno">7.5. </span><span class="content"><code>WebTransportReceiveStreamStats</code> Dictionary</span><a class="self-link" href="#receive-stream-stats"></a></h3>
+   <p>The <dfn class="dfn-paneled idl-code" data-dfn-type="dictionary" data-export id="dictdef-webtransportreceivestreamstats"><code>WebTransportReceiveStreamStats</code></dfn> dictionary includes
+information on stats specific to one <code class="idl"><a data-link-type="idl" href="#webtransportreceivestream" id="ref-for-webtransportreceivestream①⑦">WebTransportReceiveStream</a></code>.</p>
+<pre class="idl highlight def"><c- b>dictionary</c-> <a class="idl-code" data-link-type="dictionary" href="#dictdef-webtransportreceivestreamstats" id="ref-for-dictdef-webtransportreceivestreamstats②"><c- g>WebTransportReceiveStreamStats</c-></a> {
+  <a data-link-type="idl-name" href="https://www.w3.org/TR/hr-time-2/#dom-domhighrestimestamp" id="ref-for-dom-domhighrestimestamp①②"><c- n>DOMHighResTimeStamp</c-></a> <a class="idl-code" data-link-type="dict-member" data-type="DOMHighResTimeStamp " href="#dom-webtransportreceivestreamstats-timestamp" id="ref-for-dom-webtransportreceivestreamstats-timestamp"><c- g>timestamp</c-></a>;
+  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-unsigned-long-long" id="ref-for-idl-unsigned-long-long②②"><c- b>unsigned</c-> <c- b>long</c-> <c- b>long</c-></a> <a class="idl-code" data-link-type="dict-member" data-type="unsigned long long " href="#dom-webtransportreceivestreamstats-bytesreceived" id="ref-for-dom-webtransportreceivestreamstats-bytesreceived"><c- g>bytesReceived</c-></a>;
+  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-unsigned-long-long" id="ref-for-idl-unsigned-long-long②③"><c- b>unsigned</c-> <c- b>long</c-> <c- b>long</c-></a> <a class="idl-code" data-link-type="dict-member" data-type="unsigned long long " href="#dom-webtransportreceivestreamstats-bytesread" id="ref-for-dom-webtransportreceivestreamstats-bytesread"><c- g>bytesRead</c-></a>;
+};
+</pre>
+   <p>The dictionary SHALL have the following attributes:</p>
+   <dl>
+    <dt data-md><dfn class="dfn-paneled idl-code" data-dfn-for="WebTransportReceiveStreamStats" data-dfn-type="dict-member" data-export id="dom-webtransportreceivestreamstats-timestamp"><code>timestamp</code></dfn>, <span> of type <a data-link-type="idl-name" href="https://www.w3.org/TR/hr-time-2/#dom-domhighrestimestamp" id="ref-for-dom-domhighrestimestamp①③">DOMHighResTimeStamp</a></span>
+    <dd data-md>
+     <p>The <code>timestamp</code> for when the stats are gathered, relative to the
+ UNIX epoch (Jan 1, 1970, UTC).</p>
+    <dt data-md><dfn class="dfn-paneled idl-code" data-dfn-for="WebTransportReceiveStreamStats" data-dfn-type="dict-member" data-export id="dom-webtransportreceivestreamstats-bytesreceived"><code>bytesReceived</code></dfn>, <span> of type <a data-link-type="idl-name" href="https://webidl.spec.whatwg.org/#idl-unsigned-long-long" id="ref-for-idl-unsigned-long-long②④">unsigned long long</a></span>
+    <dd data-md>
+     <p>An indicator of progress on how many of the server application’s bytes
+ intended for this <code class="idl"><a data-link-type="idl" href="#webtransportreceivestream" id="ref-for-webtransportreceivestream①⑧">WebTransportReceiveStream</a></code> have been received so far.
+ Only sequential bytes up to, but not including, the first missing byte, are
+ counted. This number can only increase.</p>
+     <p class="note" role="note"><span>Note:</span> this is progress of app data received on a single stream only, and does
+ not include any network overhead.</p>
+    <dt data-md><dfn class="dfn-paneled idl-code" data-dfn-for="WebTransportReceiveStreamStats" data-dfn-type="dict-member" data-export id="dom-webtransportreceivestreamstats-bytesread"><code>bytesRead</code></dfn>, <span> of type <a data-link-type="idl-name" href="https://webidl.spec.whatwg.org/#idl-unsigned-long-long" id="ref-for-idl-unsigned-long-long②⑤">unsigned long long</a></span>
+    <dd data-md>
+     <p>The total number of bytes the application has successfully read from this <code class="idl"><a data-link-type="idl" href="#webtransportreceivestream" id="ref-for-webtransportreceivestream①⑨">WebTransportReceiveStream</a></code>. This number can only increase, and is always
+ less than or equal to <code class="idl"><a data-link-type="idl" href="#dom-webtransportreceivestreamstats-bytesreceived" id="ref-for-dom-webtransportreceivestreamstats-bytesreceived①">bytesReceived</a></code>.</p>
+   </dl>
    <h2 class="heading settled" data-level="8" id="bidirectional-stream"><span class="secno">8. </span><span class="content">Interface <code>WebTransportBidirectionalStream</code></span><a class="self-link" href="#bidirectional-stream"></a></h2>
-<pre class="idl highlight def">[<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#Exposed" id="ref-for-Exposed②"><c- g>Exposed</c-></a>=(<c- n>Window</c->,<c- n>Worker</c->), <a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#SecureContext" id="ref-for-SecureContext②"><c- g>SecureContext</c-></a>]
+<pre class="idl highlight def">[<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#Exposed" id="ref-for-Exposed④"><c- g>Exposed</c-></a>=(<c- n>Window</c->,<c- n>Worker</c->), <a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#SecureContext" id="ref-for-SecureContext④"><c- g>SecureContext</c-></a>]
 <c- b>interface</c-> <dfn class="dfn-paneled idl-code" data-dfn-type="interface" data-export id="webtransportbidirectionalstream"><code><c- g>WebTransportBidirectionalStream</c-></code></dfn> {
-  <c- b>readonly</c-> <c- b>attribute</c-> <a data-link-type="idl-name" href="https://streams.spec.whatwg.org/#readablestream" id="ref-for-readablestream①⑧"><c- n>ReadableStream</c-></a> <a class="idl-code" data-link-type="attribute" data-readonly data-type="ReadableStream" href="#dom-webtransportbidirectionalstream-readable" id="ref-for-dom-webtransportbidirectionalstream-readable"><c- g>readable</c-></a>;
-  <c- b>readonly</c-> <c- b>attribute</c-> <a data-link-type="idl-name" href="https://streams.spec.whatwg.org/#writablestream" id="ref-for-writablestream⑨"><c- n>WritableStream</c-></a> <a class="idl-code" data-link-type="attribute" data-readonly data-type="WritableStream" href="#dom-webtransportbidirectionalstream-writable" id="ref-for-dom-webtransportbidirectionalstream-writable"><c- g>writable</c-></a>;
+  <c- b>readonly</c-> <c- b>attribute</c-> <a data-link-type="idl-name" href="https://streams.spec.whatwg.org/#readablestream" id="ref-for-readablestream①⑦"><c- n>ReadableStream</c-></a> <a class="idl-code" data-link-type="attribute" data-readonly data-type="ReadableStream" href="#dom-webtransportbidirectionalstream-readable" id="ref-for-dom-webtransportbidirectionalstream-readable"><c- g>readable</c-></a>;
+  <c- b>readonly</c-> <c- b>attribute</c-> <a data-link-type="idl-name" href="https://streams.spec.whatwg.org/#writablestream" id="ref-for-writablestream⑧"><c- n>WritableStream</c-></a> <a class="idl-code" data-link-type="attribute" data-readonly data-type="WritableStream" href="#dom-webtransportbidirectionalstream-writable" id="ref-for-dom-webtransportbidirectionalstream-writable"><c- g>writable</c-></a>;
 };
 </pre>
    <h3 class="heading settled" data-level="8.1" id="bidirectional-stream-internal-slots"><span class="secno">8.1. </span><span class="content">Internal slots</span><a class="self-link" href="#bidirectional-stream-internal-slots"></a></h3>
@@ -2448,20 +2584,20 @@ <h3 class="heading settled" data-level="8.1" id="bidirectional-stream-internal-s
     <tbody>
      <tr>
       <td><dfn class="dfn-paneled idl-code" data-dfn-for="WebTransportBidirectionalStream" data-dfn-type="attribute" data-export id="dom-webtransportbidirectionalstream-readable-slot"><code>[[Readable]]</code></dfn> 
-      <td class="non-normative">A <code class="idl"><a data-link-type="idl" href="#receivestream" id="ref-for-receivestream①⑤">ReceiveStream</a></code>. 
+      <td class="non-normative">A <code class="idl"><a data-link-type="idl" href="#webtransportreceivestream" id="ref-for-webtransportreceivestream②⓪">WebTransportReceiveStream</a></code>. 
      <tr>
       <td><dfn class="dfn-paneled idl-code" data-dfn-for="WebTransportBidirectionalStream" data-dfn-type="attribute" data-export id="dom-webtransportbidirectionalstream-writable-slot"><code>[[Writable]]</code></dfn> 
-      <td class="non-normative">A <code class="idl"><a data-link-type="idl" href="#sendstream" id="ref-for-sendstream①④">SendStream</a></code>. 
+      <td class="non-normative">A <code class="idl"><a data-link-type="idl" href="#webtransportsendstream" id="ref-for-webtransportsendstream②①">WebTransportSendStream</a></code>. 
      <tr>
       <td><dfn class="dfn-paneled idl-code" data-dfn-for="WebTransportBidirectionalStream" data-dfn-type="attribute" data-export id="dom-webtransportbidirectionalstream-transport-slot"><code>[[Transport]]</code></dfn> 
       <td class="non-normative">The <code class="idl"><a data-link-type="idl" href="#webtransport" id="ref-for-webtransport②⑧">WebTransport</a></code> object owning this <code class="idl"><a data-link-type="idl" href="#webtransportbidirectionalstream" id="ref-for-webtransportbidirectionalstream⑦">WebTransportBidirectionalStream</a></code>. 
    </table>
    <h3 class="heading settled" data-level="8.2" id="bidirectional-stream-attributes"><span class="secno">8.2. </span><span class="content">Attributes</span><a class="self-link" href="#bidirectional-stream-attributes"></a></h3>
    <dl>
-    <dt data-md><dfn class="dfn-paneled idl-code" data-dfn-for="WebTransportBidirectionalStream" data-dfn-type="attribute" data-export id="dom-webtransportbidirectionalstream-readable"><code>readable</code></dfn>, <span> of type <a data-link-type="idl-name" href="https://streams.spec.whatwg.org/#readablestream" id="ref-for-readablestream①⑨">ReadableStream</a>, readonly</span>
+    <dt data-md><dfn class="dfn-paneled idl-code" data-dfn-for="WebTransportBidirectionalStream" data-dfn-type="attribute" data-export id="dom-webtransportbidirectionalstream-readable"><code>readable</code></dfn>, <span> of type <a data-link-type="idl-name" href="https://streams.spec.whatwg.org/#readablestream" id="ref-for-readablestream①⑧">ReadableStream</a>, readonly</span>
     <dd data-md>
      <p>The getter steps are to return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#this" id="ref-for-this②①">this</a>'s <code class="idl"><a data-link-type="idl" href="#dom-webtransportbidirectionalstream-readable-slot" id="ref-for-dom-webtransportbidirectionalstream-readable-slot">[[Readable]]</a></code>.</p>
-    <dt data-md><dfn class="dfn-paneled idl-code" data-dfn-for="WebTransportBidirectionalStream" data-dfn-type="attribute" data-export id="dom-webtransportbidirectionalstream-writable"><code>writable</code></dfn>, <span> of type <a data-link-type="idl-name" href="https://streams.spec.whatwg.org/#writablestream" id="ref-for-writablestream①⓪">WritableStream</a>, readonly</span>
+    <dt data-md><dfn class="dfn-paneled idl-code" data-dfn-for="WebTransportBidirectionalStream" data-dfn-type="attribute" data-export id="dom-webtransportbidirectionalstream-writable"><code>writable</code></dfn>, <span> of type <a data-link-type="idl-name" href="https://streams.spec.whatwg.org/#writablestream" id="ref-for-writablestream⑨">WritableStream</a>, readonly</span>
     <dd data-md>
      <p>The getter steps are to return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#this" id="ref-for-this②②">this</a>'s <code class="idl"><a data-link-type="idl" href="#dom-webtransportbidirectionalstream-writable-slot" id="ref-for-dom-webtransportbidirectionalstream-writable-slot">[[Writable]]</a></code>.</p>
    </dl>
@@ -2470,11 +2606,11 @@ <h3 class="heading settled" data-level="8.3" id="bidirectional-stream-procedures
      To <dfn class="dfn-paneled" data-dfn-for="BidirectionalStream" data-dfn-type="dfn" data-noexport id="bidirectionalstream-create">create</dfn> a <code class="idl"><a data-link-type="idl" href="#webtransportbidirectionalstream" id="ref-for-webtransportbidirectionalstream⑧">WebTransportBidirectionalStream</a></code> with a <a data-link-type="dfn" href="#stream-bidirectional" id="ref-for-stream-bidirectional①⓪">bidirectional</a> <a data-link-type="dfn" href="#webtransport-stream" id="ref-for-webtransport-stream①③">WebTransport stream</a> <var>internalStream</var> and a <code class="idl"><a data-link-type="idl" href="#webtransport" id="ref-for-webtransport②⑨">WebTransport</a></code> object <var>transport</var>, run these steps. 
     <ol>
      <li data-md>
-      <p>Let <var>readable</var> be the result of <a data-link-type="dfn" href="#receivestream-create" id="ref-for-receivestream-create③">creating</a> a <code class="idl"><a data-link-type="idl" href="#receivestream" id="ref-for-receivestream①⑥">ReceiveStream</a></code> with <var>internalStream</var> and <var>transport</var>.</p>
+      <p>Let <var>readable</var> be the result of <a data-link-type="dfn" href="#webtransportreceivestream-create" id="ref-for-webtransportreceivestream-create③">creating</a> a <code class="idl"><a data-link-type="idl" href="#webtransportreceivestream" id="ref-for-webtransportreceivestream②①">WebTransportReceiveStream</a></code> with <var>internalStream</var> and <var>transport</var>.</p>
      <li data-md>
-      <p>Let <var>writable</var> be the result of <a data-link-type="dfn" href="#sendstream-create" id="ref-for-sendstream-create③">creating</a> a <code class="idl"><a data-link-type="idl" href="#sendstream" id="ref-for-sendstream①⑤">SendStream</a></code> with <var>internalStream</var> and <var>transport</var>.</p>
+      <p>Let <var>writable</var> be the result of <a data-link-type="dfn" href="#webtransportsendstream-create" id="ref-for-webtransportsendstream-create②">creating</a> a <code class="idl"><a data-link-type="idl" href="#webtransportsendstream" id="ref-for-webtransportsendstream②②">WebTransportSendStream</a></code> with <var>internalStream</var> and <var>transport</var>.</p>
      <li data-md>
-      <p>Let <var>stream</var> be a <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#new" id="ref-for-new⑧">new</a> <code class="idl"><a data-link-type="idl" href="#webtransportbidirectionalstream" id="ref-for-webtransportbidirectionalstream⑨">WebTransportBidirectionalStream</a></code>, with:</p>
+      <p>Let <var>stream</var> be a <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#new" id="ref-for-new①⓪">new</a> <code class="idl"><a data-link-type="idl" href="#webtransportbidirectionalstream" id="ref-for-webtransportbidirectionalstream⑨">WebTransportBidirectionalStream</a></code>, with:</p>
       <dl>
        <dt data-md><code class="idl"><a data-link-type="idl" href="#dom-webtransportbidirectionalstream-readable-slot" id="ref-for-dom-webtransportbidirectionalstream-readable-slot①">[[Readable]]</a></code>
        <dd data-md>
@@ -2498,7 +2634,7 @@ <h2 class="heading settled" data-level="9" id="web-transport-error-interface"><s
     <li data-md>
      <p>A reason for a client-initiated abort operation.</p>
    </ul>
-<pre class="idl highlight def">[<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#Exposed" id="ref-for-Exposed③"><c- g>Exposed</c-></a>=(<c- n>Window</c->,<c- n>Worker</c->), <a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#SecureContext" id="ref-for-SecureContext③"><c- g>SecureContext</c-></a>]
+<pre class="idl highlight def">[<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#Exposed" id="ref-for-Exposed⑤"><c- g>Exposed</c-></a>=(<c- n>Window</c->,<c- n>Worker</c->), <a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#SecureContext" id="ref-for-SecureContext⑤"><c- g>SecureContext</c-></a>]
 <c- b>interface</c-> <a class="idl-code" data-link-type="interface" href="#webtransporterror" id="ref-for-webtransporterror①①"><c- g>WebTransportError</c-></a> : <a data-link-type="idl-name" href="https://webidl.spec.whatwg.org/#idl-DOMException" id="ref-for-idl-DOMException①"><c- n>DOMException</c-></a> {
   <a class="idl-code" data-link-type="constructor" href="#dom-webtransporterror-webtransporterror" id="ref-for-dom-webtransporterror-webtransporterror"><c- g>constructor</c-></a>(<c- b>optional</c-> <a data-link-type="idl-name" href="#dictdef-webtransporterrorinit" id="ref-for-dictdef-webtransporterrorinit"><c- n>WebTransportErrorInit</c-></a> <dfn class="idl-code" data-dfn-for="WebTransportError/WebTransportError(init), WebTransportError/constructor(init), WebTransportError/WebTransportError(), WebTransportError/constructor()" data-dfn-type="argument" data-export id="dom-webtransporterror-webtransporterror-init-init"><code><c- g>init</c-></code><a class="self-link" href="#dom-webtransporterror-webtransporterror-init-init"></a></dfn> = {});
 
@@ -2561,7 +2697,7 @@ <h3 class="heading settled" data-level="9.4" id="web-transport-error-procedures"
      <li data-md>
       <p>Let <var>message</var> be an <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#implementation-defined" id="ref-for-implementation-defined⑧">implementation-defined</a> string.</p>
      <li data-md>
-      <p>Let <var>error</var> be a <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#new" id="ref-for-new⑨">new</a> <code class="idl"><a data-link-type="idl" href="#webtransporterror" id="ref-for-webtransporterror①④">WebTransportError</a></code>.</p>
+      <p>Let <var>error</var> be a <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#new" id="ref-for-new①①">new</a> <code class="idl"><a data-link-type="idl" href="#webtransporterror" id="ref-for-webtransporterror①④">WebTransportError</a></code>.</p>
      <li data-md>
       <p><a data-link-type="dfn" href="#webtransporterror-set-up" id="ref-for-webtransporterror-set-up①">Set up</a> <var>error</var> with <var>message</var> and <var>source</var>.</p>
     </ol>
@@ -2772,7 +2908,7 @@ <h3 class="heading settled" data-level="12.4" id="example-sending-stream"><span
   <c- k>await</c-> writer<c- p>.</c->close<c- p>();</c->
 <c- p>}</c->
 </pre>
-   <p>Encoding can also be done through pipes from a <code class="idl"><a data-link-type="idl" href="https://streams.spec.whatwg.org/#readablestream" id="ref-for-readablestream②⓪">ReadableStream</a></code>, for example using <code class="idl"><a data-link-type="idl" href="https://encoding.spec.whatwg.org/#textencoderstream" id="ref-for-textencoderstream">TextEncoderStream</a></code>.</p>
+   <p>Encoding can also be done through pipes from a <code class="idl"><a data-link-type="idl" href="https://streams.spec.whatwg.org/#readablestream" id="ref-for-readablestream①⑨">ReadableStream</a></code>, for example using <code class="idl"><a data-link-type="idl" href="https://encoding.spec.whatwg.org/#textencoderstream" id="ref-for-textencoderstream">TextEncoderStream</a></code>.</p>
 <pre class="example highlight" id="example-14e60a4e"><a class="self-link" href="#example-14e60a4e"></a><c- k>async</c-> <c- a>function</c-> sendText<c- p>(</c->url<c- p>,</c-> readableStreamOfTextData<c- p>)</c-> <c- p>{</c->
   <c- a>const</c-> wt <c- o>=</c-> <c- ow>new</c-> WebTransport<c- p>(</c->url<c- p>);</c->
   <c- a>const</c-> writable <c- o>=</c-> <c- k>await</c-> wt<c- p>.</c->createUnidirectionalStream<c- p>();</c->
@@ -2784,7 +2920,7 @@ <h3 class="heading settled" data-level="12.4" id="example-sending-stream"><span
    <h3 class="heading settled" data-level="12.5" id="example-receiving-incoming-streams"><span class="secno">12.5. </span><span class="content">Receiving incoming streams</span><a class="self-link" href="#example-receiving-incoming-streams"></a></h3>
    <p><em>This section is non-normative.</em></p>
    <p>Reading incoming streams can be achieved by iterating over the <code class="idl"><a data-link-type="idl" href="#dom-webtransport-incomingunidirectionalstreams" id="ref-for-dom-webtransport-incomingunidirectionalstreams①">incomingUnidirectionalStreams</a></code> attribute,
-and then consuming each <code class="idl"><a data-link-type="idl" href="#receivestream" id="ref-for-receivestream①⑦">ReceiveStream</a></code> by iterating over its chunks.</p>
+and then consuming each <code class="idl"><a data-link-type="idl" href="#webtransportreceivestream" id="ref-for-webtransportreceivestream②②">WebTransportReceiveStream</a></code> by iterating over its chunks.</p>
 <pre class="example highlight" id="example-18b095a1"><a class="self-link" href="#example-18b095a1"></a><c- k>async</c-> <c- a>function</c-> receiveData<c- p>(</c->url<c- p>,</c-> processTheData<c- p>)</c-> <c- p>{</c->
   <c- a>const</c-> wt <c- o>=</c-> <c- ow>new</c-> WebTransport<c- p>(</c->url<c- p>);</c->
   <c- k>for</c-> <c- k>await</c-> <c- p>(</c-><c- a>const</c-> readable <c- k>of</c-> wt<c- p>.</c->incomingUnidirectionalStreams<c- p>)</c-> <c- p>{</c->
@@ -2954,16 +3090,29 @@ <h2 class="heading settled" data-level="13" id="acknowledgements"><span class="s
   <h2 class="no-num no-ref heading settled" id="index"><span class="content">Index</span><a class="self-link" href="#index"></a></h2>
   <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="content">Terms defined by this specification</span><a class="self-link" href="#index-defined-here"></a></h3>
   <ul class="index">
-   <li><a href="#sendstream-abort">abort</a><span>, in § 6.2</span>
+   <li><a href="#webtransportsendstream-abort">abort</a><span>, in § 6.3</span>
    <li><a href="#dom-webtransporthash-algorithm">algorithm</a><span>, in § 5.9</span>
    <li><a href="#allowed-public-key-algorithms">allowed public key algorithms</a><span>, in § 5.9</span>
    <li><a href="#dom-webtransportoptions-allowpooling">allowPooling</a><span>, in § 5.9</span>
    <li><a href="#stream-bidirectional">bidirectional</a><span>, in § 3</span>
-   <li><a href="#dom-webtransportstats-bytesreceived">bytesReceived</a><span>, in § 5.11</span>
-   <li><a href="#dom-webtransportstats-bytessent">bytesSent</a><span>, in § 5.11</span>
-   <li><a href="#receivestream-cancel">cancel</a><span>, in § 7.2</span>
+   <li><a href="#dom-webtransportsendstreamstats-bytesacknowledged">bytesAcknowledged</a><span>, in § 6.5</span>
+   <li><a href="#dom-webtransportreceivestreamstats-bytesread">bytesRead</a><span>, in § 7.5</span>
+   <li>
+    bytesReceived
+    <ul>
+     <li><a href="#dom-webtransportreceivestreamstats-bytesreceived">dict-member for WebTransportReceiveStreamStats</a><span>, in § 7.5</span>
+     <li><a href="#dom-webtransportstats-bytesreceived">dict-member for WebTransportStats</a><span>, in § 5.11</span>
+    </ul>
+   <li>
+    bytesSent
+    <ul>
+     <li><a href="#dom-webtransportsendstreamstats-bytessent">dict-member for WebTransportSendStreamStats</a><span>, in § 6.5</span>
+     <li><a href="#dom-webtransportstats-bytessent">dict-member for WebTransportStats</a><span>, in § 5.11</span>
+    </ul>
+   <li><a href="#dom-webtransportsendstreamstats-byteswritten">bytesWritten</a><span>, in § 6.5</span>
+   <li><a href="#webtransportreceivestream-cancel">cancel</a><span>, in § 7.3</span>
    <li><a href="#webtransport-cleanup">cleanup</a><span>, in § 5.5</span>
-   <li><a href="#sendstream-close">close</a><span>, in § 6.2</span>
+   <li><a href="#webtransportsendstream-close">close</a><span>, in § 6.3</span>
    <li><a href="#dom-webtransport-close">close()</a><span>, in § 5.4</span>
    <li><a href="#dom-webtransport-close">close(closeInfo)</a><span>, in § 5.4</span>
    <li><a href="#dom-webtransportcloseinfo-closecode">closeCode</a><span>, in § 5.10</span>
@@ -2978,10 +3127,10 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
     create
     <ul>
      <li><a href="#bidirectionalstream-create">dfn for BidirectionalStream</a><span>, in § 8.3</span>
-     <li><a href="#receivestream-create">dfn for ReceiveStream</a><span>, in § 7.2</span>
-     <li><a href="#sendstream-create">dfn for SendStream</a><span>, in § 6.2</span>
      <li><a href="#webtransportdatagramduplexstream-create">dfn for WebTransportDatagramDuplexStream</a><span>, in § 4.1</span>
      <li><a href="#webtransporterror-create">dfn for WebTransportError</a><span>, in § 9.4</span>
+     <li><a href="#webtransportreceivestream-create">dfn for WebTransportReceiveStream</a><span>, in § 7.3</span>
+     <li><a href="#webtransportsendstream-create">dfn for WebTransportSendStream</a><span>, in § 6.3</span>
     </ul>
    <li><a href="#session-create-a-bidirectional-stream">create a bidirectional stream</a><span>, in § 3</span>
    <li><a href="#session-create-an-outgoing-unidirectional-stream">create an outgoing unidirectional stream</a><span>, in § 3</span>
@@ -2990,9 +3139,9 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <li>
     creating
     <ul>
-     <li><a href="#receivestream-create">dfn for ReceiveStream</a><span>, in § 7.2</span>
-     <li><a href="#sendstream-create">dfn for SendStream</a><span>, in § 6.2</span>
      <li><a href="#webtransportdatagramduplexstream-create">dfn for WebTransportDatagramDuplexStream</a><span>, in § 4.1</span>
+     <li><a href="#webtransportreceivestream-create">dfn for WebTransportReceiveStream</a><span>, in § 7.3</span>
+     <li><a href="#webtransportsendstream-create">dfn for WebTransportSendStream</a><span>, in § 6.3</span>
     </ul>
    <li><a href="#custom-certificate-requirements">custom certificate requirements</a><span>, in § 5.9</span>
    <li><a href="#dom-webtransport-datagrams-slot">[[Datagrams]]</a><span>, in § 5.1</span>
@@ -3005,7 +3154,13 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <li><a href="#dom-webtransportdatagramstats-droppedincoming">droppedIncoming</a><span>, in § 5.12</span>
    <li><a href="#session-establish">establish</a><span>, in § 3</span>
    <li><a href="#dom-webtransportdatagramstats-expiredoutgoing">expiredOutgoing</a><span>, in § 5.12</span>
-   <li><a href="#dom-webtransport-getstats">getStats()</a><span>, in § 5.4</span>
+   <li>
+    getStats()
+    <ul>
+     <li><a href="#dom-webtransport-getstats">method for WebTransport</a><span>, in § 5.4</span>
+     <li><a href="#dom-webtransportreceivestream-getstats">method for WebTransportReceiveStream</a><span>, in § 7.1</span>
+     <li><a href="#dom-webtransportsendstream-getstats">method for WebTransportSendStream</a><span>, in § 6.1</span>
+    </ul>
    <li><a href="#dom-webtransport-incomingbidirectionalstreams-slot">[[IncomingBidirectionalStreams]]</a><span>, in § 5.1</span>
    <li><a href="#dom-webtransport-incomingbidirectionalstreams">incomingBidirectionalStreams</a><span>, in § 5.3</span>
    <li><a href="#dom-webtransportdatagramduplexstream-incomingdatagramsexpirationduration-slot">[[IncomingDatagramsExpirationDuration]]</a><span>, in § 4.1</span>
@@ -3021,8 +3176,8 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <li>
     [[InternalStream]]
     <ul>
-     <li><a href="#dom-receivestream-internalstream-slot">attribute for ReceiveStream</a><span>, in § 7.1</span>
-     <li><a href="#dom-sendstream-internalstream-slot">attribute for SendStream</a><span>, in § 6.1</span>
+     <li><a href="#dom-webtransportreceivestream-internalstream-slot">attribute for WebTransportReceiveStream</a><span>, in § 7.2</span>
+     <li><a href="#dom-webtransportsendstream-internalstream-slot">attribute for WebTransportSendStream</a><span>, in § 6.2</span>
     </ul>
    <li><a href="#dom-webtransportdatagramstats-lostoutgoing">lostOutgoing</a><span>, in § 5.12</span>
    <li><a href="#dom-webtransportdatagramduplexstream-maxdatagramsize">maxDatagramSize</a><span>, in § 4.2</span>
@@ -3041,9 +3196,9 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <li><a href="#dom-webtransportstats-packetsreceived">packetsReceived</a><span>, in § 5.11</span>
    <li><a href="#dom-webtransportstats-packetssent">packetsSent</a><span>, in § 5.11</span>
    <li><a href="#dom-webtransportreliabilitymode-pending">"pending"</a><span>, in § 5</span>
-   <li><a href="#dom-sendstream-pendingoperation-slot">[[PendingOperation]]</a><span>, in § 6.1</span>
+   <li><a href="#dom-webtransportsendstream-pendingoperation-slot">[[PendingOperation]]</a><span>, in § 6.2</span>
    <li><a href="#pullbidirectionalstream">pullBidirectionalStream</a><span>, in § 5.2</span>
-   <li><a href="#receivestream-pull-bytes">pull bytes</a><span>, in § 7.2</span>
+   <li><a href="#webtransportreceivestream-pull-bytes">pull bytes</a><span>, in § 7.3</span>
    <li><a href="#pulldatagrams">pullDatagrams</a><span>, in § 4.3</span>
    <li><a href="#pullunidirectionalstream">pullUnidirectionalStream</a><span>, in § 5.2</span>
    <li><a href="#webtransport-queue-a-network-task">queue a network task</a><span>, in § 5.5</span>
@@ -3068,7 +3223,6 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <li><a href="#session-receive-a-datagram">receive a datagram</a><span>, in § 3</span>
    <li><a href="#session-receive-an-incoming-unidirectional-stream">receive an incoming unidirectional stream</a><span>, in § 3</span>
    <li><a href="#receivedatagrams">receiveDatagrams</a><span>, in § 4.3</span>
-   <li><a href="#receivestream">ReceiveStream</a><span>, in § 7</span>
    <li><a href="#dom-webtransport-receivestreams-slot">[[ReceiveStreams]]</a><span>, in § 5.1</span>
    <li><a href="#dom-webtransport-reliability-slot">[[Reliability]]</a><span>, in § 5.1</span>
    <li><a href="#dom-webtransport-reliability">reliability</a><span>, in § 5.3</span>
@@ -3085,7 +3239,6 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <li><a href="#session-send-a-datagram">send a datagram</a><span>, in § 3</span>
    <li><a href="#senddatagrams">sendDatagrams</a><span>, in § 4.3</span>
    <li><a href="#stream-send-stop_sending">send STOP_SENDING</a><span>, in § 3</span>
-   <li><a href="#sendstream">SendStream</a><span>, in § 6</span>
    <li><a href="#dom-webtransport-sendstreams-slot">[[SendStreams]]</a><span>, in § 5.1</span>
    <li><a href="#dom-webtransportoptions-servercertificatehashes">serverCertificateHashes</a><span>, in § 5.9</span>
    <li><a href="#dom-webtransporterrorsource-session">"session"</a><span>, in § 9</span>
@@ -3111,14 +3264,16 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
     timestamp
     <ul>
      <li><a href="#dom-webtransportdatagramstats-timestamp">dict-member for WebTransportDatagramStats</a><span>, in § 5.12</span>
+     <li><a href="#dom-webtransportreceivestreamstats-timestamp">dict-member for WebTransportReceiveStreamStats</a><span>, in § 7.5</span>
+     <li><a href="#dom-webtransportsendstreamstats-timestamp">dict-member for WebTransportSendStreamStats</a><span>, in § 6.5</span>
      <li><a href="#dom-webtransportstats-timestamp">dict-member for WebTransportStats</a><span>, in § 5.11</span>
     </ul>
    <li>
     [[Transport]]
     <ul>
-     <li><a href="#dom-receivestream-transport-slot">attribute for ReceiveStream</a><span>, in § 7.1</span>
-     <li><a href="#dom-sendstream-transport-slot">attribute for SendStream</a><span>, in § 6.1</span>
      <li><a href="#dom-webtransportbidirectionalstream-transport-slot">attribute for WebTransportBidirectionalStream</a><span>, in § 8.1</span>
+     <li><a href="#dom-webtransportreceivestream-transport-slot">attribute for WebTransportReceiveStream</a><span>, in § 7.2</span>
+     <li><a href="#dom-webtransportsendstream-transport-slot">attribute for WebTransportSendStream</a><span>, in § 6.2</span>
     </ul>
    <li><a href="#dom-webtransporthash-value">value</a><span>, in § 5.9</span>
    <li><a href="#verify-a-certificate-hash">verify a certificate hash</a><span>, in § 5.9</span>
@@ -3134,7 +3289,11 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <li><a href="#enumdef-webtransporterrorsource">WebTransportErrorSource</a><span>, in § 9</span>
    <li><a href="#dictdef-webtransporthash">WebTransportHash</a><span>, in § 5.9</span>
    <li><a href="#dictdef-webtransportoptions">WebTransportOptions</a><span>, in § 5.9</span>
+   <li><a href="#webtransportreceivestream">WebTransportReceiveStream</a><span>, in § 7</span>
+   <li><a href="#dictdef-webtransportreceivestreamstats">WebTransportReceiveStreamStats</a><span>, in § 7.5</span>
    <li><a href="#enumdef-webtransportreliabilitymode">WebTransportReliabilityMode</a><span>, in § 5</span>
+   <li><a href="#webtransportsendstream">WebTransportSendStream</a><span>, in § 6</span>
+   <li><a href="#dictdef-webtransportsendstreamstats">WebTransportSendStreamStats</a><span>, in § 6.5</span>
    <li><a href="#protocol-webtransport-session">WebTransport session</a><span>, in § 3</span>
    <li><a href="#dictdef-webtransportstats">WebTransportStats</a><span>, in § 5.11</span>
    <li><a href="#webtransport-stream">WebTransport stream</a><span>, in § 3</span>
@@ -3153,7 +3312,7 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
      <li><a href="#dom-webtransportdatagramduplexstream-writable">attribute for WebTransportDatagramDuplexStream</a><span>, in § 4.2</span>
      <li><a href="#webtransportdatagramduplexstream-create-writable">dfn for WebTransportDatagramDuplexStream/create</a><span>, in § 4.1</span>
     </ul>
-   <li><a href="#sendstream-write">write</a><span>, in § 6.2</span>
+   <li><a href="#webtransportsendstream-write">write</a><span>, in § 6.3</span>
    <li><a href="#writedatagrams">writeDatagrams</a><span>, in § 4.3</span>
   </ul>
   <aside class="dfn-panel" data-for="term-for-report-for-request">
@@ -3177,13 +3336,13 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
   <aside class="dfn-panel" data-for="term-for-abortsignal-abort-reason">
    <a href="https://dom.spec.whatwg.org/#abortsignal-abort-reason">https://dom.spec.whatwg.org/#abortsignal-abort-reason</a><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-abortsignal-abort-reason">6.2. Procedures</a>
+    <li><a href="#ref-for-abortsignal-abort-reason">6.3. Procedures</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-abortsignal-add">
    <a href="https://dom.spec.whatwg.org/#abortsignal-add">https://dom.spec.whatwg.org/#abortsignal-add</a><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-abortsignal-add">6.2. Procedures</a>
+    <li><a href="#ref-for-abortsignal-add">6.3. Procedures</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-sec-promise-objects">
@@ -3194,8 +3353,10 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
     <li><a href="#ref-for-sec-promise-objects⑦">5.3. Attributes</a>
     <li><a href="#ref-for-sec-promise-objects⑧">5.4. Methods</a> <a href="#ref-for-sec-promise-objects⑨">(2)</a> <a href="#ref-for-sec-promise-objects①⓪">(3)</a> <a href="#ref-for-sec-promise-objects①①">(4)</a> <a href="#ref-for-sec-promise-objects①②">(5)</a> <a href="#ref-for-sec-promise-objects①③">(6)</a> <a href="#ref-for-sec-promise-objects①④">(7)</a> <a href="#ref-for-sec-promise-objects①⑤">(8)</a> <a href="#ref-for-sec-promise-objects①⑥">(9)</a>
     <li><a href="#ref-for-sec-promise-objects①⑦">5.5. Procedures</a> <a href="#ref-for-sec-promise-objects①⑧">(2)</a> <a href="#ref-for-sec-promise-objects①⑨">(3)</a> <a href="#ref-for-sec-promise-objects②⓪">(4)</a>
-    <li><a href="#ref-for-sec-promise-objects②①">6.2. Procedures</a> <a href="#ref-for-sec-promise-objects②②">(2)</a> <a href="#ref-for-sec-promise-objects②③">(3)</a> <a href="#ref-for-sec-promise-objects②④">(4)</a> <a href="#ref-for-sec-promise-objects②⑤">(5)</a> <a href="#ref-for-sec-promise-objects②⑥">(6)</a>
-    <li><a href="#ref-for-sec-promise-objects②⑦">7.2. Procedures</a> <a href="#ref-for-sec-promise-objects②⑧">(2)</a>
+    <li><a href="#ref-for-sec-promise-objects②①">6.1. Methods</a>
+    <li><a href="#ref-for-sec-promise-objects②②">6.3. Procedures</a> <a href="#ref-for-sec-promise-objects②③">(2)</a> <a href="#ref-for-sec-promise-objects②④">(3)</a> <a href="#ref-for-sec-promise-objects②⑤">(4)</a> <a href="#ref-for-sec-promise-objects②⑥">(5)</a> <a href="#ref-for-sec-promise-objects②⑦">(6)</a>
+    <li><a href="#ref-for-sec-promise-objects②⑧">7.1. Methods</a>
+    <li><a href="#ref-for-sec-promise-objects②⑨">7.3. Procedures</a> <a href="#ref-for-sec-promise-objects③⓪">(2)</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-sec-promise-objects">
@@ -3206,8 +3367,10 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
     <li><a href="#ref-for-sec-promise-objects⑦">5.3. Attributes</a>
     <li><a href="#ref-for-sec-promise-objects⑧">5.4. Methods</a> <a href="#ref-for-sec-promise-objects⑨">(2)</a> <a href="#ref-for-sec-promise-objects①⓪">(3)</a> <a href="#ref-for-sec-promise-objects①①">(4)</a> <a href="#ref-for-sec-promise-objects①②">(5)</a> <a href="#ref-for-sec-promise-objects①③">(6)</a> <a href="#ref-for-sec-promise-objects①④">(7)</a> <a href="#ref-for-sec-promise-objects①⑤">(8)</a> <a href="#ref-for-sec-promise-objects①⑥">(9)</a>
     <li><a href="#ref-for-sec-promise-objects①⑦">5.5. Procedures</a> <a href="#ref-for-sec-promise-objects①⑧">(2)</a> <a href="#ref-for-sec-promise-objects①⑨">(3)</a> <a href="#ref-for-sec-promise-objects②⓪">(4)</a>
-    <li><a href="#ref-for-sec-promise-objects②①">6.2. Procedures</a> <a href="#ref-for-sec-promise-objects②②">(2)</a> <a href="#ref-for-sec-promise-objects②③">(3)</a> <a href="#ref-for-sec-promise-objects②④">(4)</a> <a href="#ref-for-sec-promise-objects②⑤">(5)</a> <a href="#ref-for-sec-promise-objects②⑥">(6)</a>
-    <li><a href="#ref-for-sec-promise-objects②⑦">7.2. Procedures</a> <a href="#ref-for-sec-promise-objects②⑧">(2)</a>
+    <li><a href="#ref-for-sec-promise-objects②①">6.1. Methods</a>
+    <li><a href="#ref-for-sec-promise-objects②②">6.3. Procedures</a> <a href="#ref-for-sec-promise-objects②③">(2)</a> <a href="#ref-for-sec-promise-objects②④">(3)</a> <a href="#ref-for-sec-promise-objects②⑤">(4)</a> <a href="#ref-for-sec-promise-objects②⑥">(5)</a> <a href="#ref-for-sec-promise-objects②⑦">(6)</a>
+    <li><a href="#ref-for-sec-promise-objects②⑧">7.1. Methods</a>
+    <li><a href="#ref-for-sec-promise-objects②⑨">7.3. Procedures</a> <a href="#ref-for-sec-promise-objects③⓪">(2)</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-sec-promise-objects">
@@ -3218,8 +3381,10 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
     <li><a href="#ref-for-sec-promise-objects⑦">5.3. Attributes</a>
     <li><a href="#ref-for-sec-promise-objects⑧">5.4. Methods</a> <a href="#ref-for-sec-promise-objects⑨">(2)</a> <a href="#ref-for-sec-promise-objects①⓪">(3)</a> <a href="#ref-for-sec-promise-objects①①">(4)</a> <a href="#ref-for-sec-promise-objects①②">(5)</a> <a href="#ref-for-sec-promise-objects①③">(6)</a> <a href="#ref-for-sec-promise-objects①④">(7)</a> <a href="#ref-for-sec-promise-objects①⑤">(8)</a> <a href="#ref-for-sec-promise-objects①⑥">(9)</a>
     <li><a href="#ref-for-sec-promise-objects①⑦">5.5. Procedures</a> <a href="#ref-for-sec-promise-objects①⑧">(2)</a> <a href="#ref-for-sec-promise-objects①⑨">(3)</a> <a href="#ref-for-sec-promise-objects②⓪">(4)</a>
-    <li><a href="#ref-for-sec-promise-objects②①">6.2. Procedures</a> <a href="#ref-for-sec-promise-objects②②">(2)</a> <a href="#ref-for-sec-promise-objects②③">(3)</a> <a href="#ref-for-sec-promise-objects②④">(4)</a> <a href="#ref-for-sec-promise-objects②⑤">(5)</a> <a href="#ref-for-sec-promise-objects②⑥">(6)</a>
-    <li><a href="#ref-for-sec-promise-objects②⑦">7.2. Procedures</a> <a href="#ref-for-sec-promise-objects②⑧">(2)</a>
+    <li><a href="#ref-for-sec-promise-objects②①">6.1. Methods</a>
+    <li><a href="#ref-for-sec-promise-objects②②">6.3. Procedures</a> <a href="#ref-for-sec-promise-objects②③">(2)</a> <a href="#ref-for-sec-promise-objects②④">(3)</a> <a href="#ref-for-sec-promise-objects②⑤">(4)</a> <a href="#ref-for-sec-promise-objects②⑥">(5)</a> <a href="#ref-for-sec-promise-objects②⑦">(6)</a>
+    <li><a href="#ref-for-sec-promise-objects②⑧">7.1. Methods</a>
+    <li><a href="#ref-for-sec-promise-objects②⑨">7.3. Procedures</a> <a href="#ref-for-sec-promise-objects③⓪">(2)</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-sec-promise-objects">
@@ -3230,8 +3395,10 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
     <li><a href="#ref-for-sec-promise-objects⑦">5.3. Attributes</a>
     <li><a href="#ref-for-sec-promise-objects⑧">5.4. Methods</a> <a href="#ref-for-sec-promise-objects⑨">(2)</a> <a href="#ref-for-sec-promise-objects①⓪">(3)</a> <a href="#ref-for-sec-promise-objects①①">(4)</a> <a href="#ref-for-sec-promise-objects①②">(5)</a> <a href="#ref-for-sec-promise-objects①③">(6)</a> <a href="#ref-for-sec-promise-objects①④">(7)</a> <a href="#ref-for-sec-promise-objects①⑤">(8)</a> <a href="#ref-for-sec-promise-objects①⑥">(9)</a>
     <li><a href="#ref-for-sec-promise-objects①⑦">5.5. Procedures</a> <a href="#ref-for-sec-promise-objects①⑧">(2)</a> <a href="#ref-for-sec-promise-objects①⑨">(3)</a> <a href="#ref-for-sec-promise-objects②⓪">(4)</a>
-    <li><a href="#ref-for-sec-promise-objects②①">6.2. Procedures</a> <a href="#ref-for-sec-promise-objects②②">(2)</a> <a href="#ref-for-sec-promise-objects②③">(3)</a> <a href="#ref-for-sec-promise-objects②④">(4)</a> <a href="#ref-for-sec-promise-objects②⑤">(5)</a> <a href="#ref-for-sec-promise-objects②⑥">(6)</a>
-    <li><a href="#ref-for-sec-promise-objects②⑦">7.2. Procedures</a> <a href="#ref-for-sec-promise-objects②⑧">(2)</a>
+    <li><a href="#ref-for-sec-promise-objects②①">6.1. Methods</a>
+    <li><a href="#ref-for-sec-promise-objects②②">6.3. Procedures</a> <a href="#ref-for-sec-promise-objects②③">(2)</a> <a href="#ref-for-sec-promise-objects②④">(3)</a> <a href="#ref-for-sec-promise-objects②⑤">(4)</a> <a href="#ref-for-sec-promise-objects②⑥">(5)</a> <a href="#ref-for-sec-promise-objects②⑦">(6)</a>
+    <li><a href="#ref-for-sec-promise-objects②⑧">7.1. Methods</a>
+    <li><a href="#ref-for-sec-promise-objects②⑨">7.3. Procedures</a> <a href="#ref-for-sec-promise-objects③⓪">(2)</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-textdecoderstream">
@@ -3336,6 +3503,8 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <ul>
     <li><a href="#ref-for-dom-domhighrestimestamp">5.11. WebTransportStats Dictionary</a> <a href="#ref-for-dom-domhighrestimestamp①">(2)</a> <a href="#ref-for-dom-domhighrestimestamp②">(3)</a> <a href="#ref-for-dom-domhighrestimestamp③">(4)</a> <a href="#ref-for-dom-domhighrestimestamp④">(5)</a> <a href="#ref-for-dom-domhighrestimestamp⑤">(6)</a> <a href="#ref-for-dom-domhighrestimestamp⑥">(7)</a> <a href="#ref-for-dom-domhighrestimestamp⑦">(8)</a>
     <li><a href="#ref-for-dom-domhighrestimestamp⑧">5.12. WebTransportDatagramStats Dictionary</a> <a href="#ref-for-dom-domhighrestimestamp⑨">(2)</a>
+    <li><a href="#ref-for-dom-domhighrestimestamp①⓪">6.5. WebTransportSendStreamStats Dictionary</a> <a href="#ref-for-dom-domhighrestimestamp①①">(2)</a>
+    <li><a href="#ref-for-dom-domhighrestimestamp①②">7.5. WebTransportReceiveStreamStats Dictionary</a> <a href="#ref-for-dom-domhighrestimestamp①③">(2)</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-ascii-serialisation-of-an-origin">
@@ -3347,7 +3516,7 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
   <aside class="dfn-panel" data-for="term-for-concept-agent-event-loop">
    <a href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-agent-event-loop">https://html.spec.whatwg.org/multipage/webappapis.html#concept-agent-event-loop</a><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-concept-agent-event-loop">7.2. Procedures</a> <a href="#ref-for-concept-agent-event-loop①">(2)</a>
+    <li><a href="#ref-for-concept-agent-event-loop">7.3. Procedures</a> <a href="#ref-for-concept-agent-event-loop①">(2)</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-in-parallel">
@@ -3356,8 +3525,10 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
     <li><a href="#ref-for-in-parallel">5.2. Constructor</a> <a href="#ref-for-in-parallel①">(2)</a> <a href="#ref-for-in-parallel②">(3)</a> <a href="#ref-for-in-parallel③">(4)</a>
     <li><a href="#ref-for-in-parallel④">5.4. Methods</a> <a href="#ref-for-in-parallel⑤">(2)</a> <a href="#ref-for-in-parallel⑥">(3)</a> <a href="#ref-for-in-parallel⑦">(4)</a>
     <li><a href="#ref-for-in-parallel⑧">5.7. Context cleanup steps</a>
-    <li><a href="#ref-for-in-parallel⑨">6.2. Procedures</a> <a href="#ref-for-in-parallel①⓪">(2)</a> <a href="#ref-for-in-parallel①①">(3)</a>
-    <li><a href="#ref-for-in-parallel①②">7.2. Procedures</a> <a href="#ref-for-in-parallel①③">(2)</a>
+    <li><a href="#ref-for-in-parallel⑨">6.1. Methods</a>
+    <li><a href="#ref-for-in-parallel①⓪">6.3. Procedures</a> <a href="#ref-for-in-parallel①①">(2)</a> <a href="#ref-for-in-parallel①②">(3)</a>
+    <li><a href="#ref-for-in-parallel①③">7.1. Methods</a>
+    <li><a href="#ref-for-in-parallel①④">7.3. Procedures</a> <a href="#ref-for-in-parallel①⑤">(2)</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-networking-task-source">
@@ -3406,8 +3577,8 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
   <aside class="dfn-panel" data-for="term-for-set-append">
    <a href="https://infra.spec.whatwg.org/#set-append">https://infra.spec.whatwg.org/#set-append</a><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-set-append">6.2. Procedures</a>
-    <li><a href="#ref-for-set-append①">7.2. Procedures</a>
+    <li><a href="#ref-for-set-append">6.3. Procedures</a>
+    <li><a href="#ref-for-set-append①">7.3. Procedures</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-iteration-break">
@@ -3420,7 +3591,7 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <a href="https://infra.spec.whatwg.org/#byte-sequence">https://infra.spec.whatwg.org/#byte-sequence</a><b>Referenced in:</b>
    <ul>
     <li><a href="#ref-for-byte-sequence">3. Protocol concepts</a> <a href="#ref-for-byte-sequence①">(2)</a>
-    <li><a href="#ref-for-byte-sequence②">6.2. Procedures</a>
+    <li><a href="#ref-for-byte-sequence②">6.3. Procedures</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-code-unit-prefix">
@@ -3453,7 +3624,7 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
     <li><a href="#ref-for-implementation-defined">4.1. Internal slots</a> <a href="#ref-for-implementation-defined①">(2)</a> <a href="#ref-for-implementation-defined②">(3)</a>
     <li><a href="#ref-for-implementation-defined③">4.3. Procedures</a> <a href="#ref-for-implementation-defined④">(2)</a>
     <li><a href="#ref-for-implementation-defined⑤">5.9. Configuration</a> <a href="#ref-for-implementation-defined⑥">(2)</a>
-    <li><a href="#ref-for-implementation-defined⑦">7.2. Procedures</a>
+    <li><a href="#ref-for-implementation-defined⑦">7.3. Procedures</a>
     <li><a href="#ref-for-implementation-defined⑧">9.4. Procedures</a>
    </ul>
   </aside>
@@ -3480,10 +3651,10 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
   <aside class="dfn-panel" data-for="term-for-list-remove">
    <a href="https://infra.spec.whatwg.org/#list-remove">https://infra.spec.whatwg.org/#list-remove</a><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-list-remove">6.2. Procedures</a> <a href="#ref-for-list-remove①">(2)</a>
-    <li><a href="#ref-for-list-remove②">6.3. STOP_SENDING signal coming from the server</a>
-    <li><a href="#ref-for-list-remove③">7.2. Procedures</a> <a href="#ref-for-list-remove④">(2)</a> <a href="#ref-for-list-remove⑤">(3)</a>
-    <li><a href="#ref-for-list-remove⑥">7.3. Reset signal coming from the server</a>
+    <li><a href="#ref-for-list-remove">6.3. Procedures</a> <a href="#ref-for-list-remove①">(2)</a>
+    <li><a href="#ref-for-list-remove②">6.4. STOP_SENDING signal coming from the server</a>
+    <li><a href="#ref-for-list-remove③">7.3. Procedures</a> <a href="#ref-for-list-remove④">(2)</a> <a href="#ref-for-list-remove⑤">(3)</a>
+    <li><a href="#ref-for-list-remove⑥">7.4. Reset signal coming from the server</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-ordered-set">
@@ -3504,12 +3675,10 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
     <li><a href="#ref-for-readablestream⑤">5.1. Internal slots</a> <a href="#ref-for-readablestream⑥">(2)</a>
     <li><a href="#ref-for-readablestream⑦">5.2. Constructor</a> <a href="#ref-for-readablestream⑧">(2)</a> <a href="#ref-for-readablestream⑨">(3)</a>
     <li><a href="#ref-for-readablestream①⓪">5.3. Attributes</a> <a href="#ref-for-readablestream①①">(2)</a> <a href="#ref-for-readablestream①②">(3)</a> <a href="#ref-for-readablestream①③">(4)</a>
-    <li><a href="#ref-for-readablestream①④">7. ReceiveStream</a> <a href="#ref-for-readablestream①⑤">(2)</a>
-    <li><a href="#ref-for-readablestream①⑥">7.1. Internal Slots</a>
-    <li><a href="#ref-for-readablestream①⑦">7.2. Procedures</a>
-    <li><a href="#ref-for-readablestream①⑧">8. Interface WebTransportBidirectionalStream</a>
-    <li><a href="#ref-for-readablestream①⑨">8.2. Attributes</a>
-    <li><a href="#ref-for-readablestream②⓪">12.4. Sending a stream</a>
+    <li><a href="#ref-for-readablestream①④">7. Interface WebTransportReceiveStream</a> <a href="#ref-for-readablestream①⑤">(2)</a> <a href="#ref-for-readablestream①⑥">(3)</a>
+    <li><a href="#ref-for-readablestream①⑦">8. Interface WebTransportBidirectionalStream</a>
+    <li><a href="#ref-for-readablestream①⑧">8.2. Attributes</a>
+    <li><a href="#ref-for-readablestream①⑨">12.4. Sending a stream</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-writablestream">
@@ -3519,13 +3688,10 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
     <li><a href="#ref-for-writablestream①">4.1. Internal slots</a>
     <li><a href="#ref-for-writablestream②">4.2. Attributes</a>
     <li><a href="#ref-for-writablestream③">4.3. Procedures</a>
-    <li><a href="#ref-for-writablestream④">5. WebTransport Interface</a>
-    <li><a href="#ref-for-writablestream⑤">5.2. Constructor</a>
-    <li><a href="#ref-for-writablestream⑥">6. SendStream</a>
-    <li><a href="#ref-for-writablestream⑦">6.1. Internal Slots</a>
-    <li><a href="#ref-for-writablestream⑧">6.2. Procedures</a>
-    <li><a href="#ref-for-writablestream⑨">8. Interface WebTransportBidirectionalStream</a>
-    <li><a href="#ref-for-writablestream①⓪">8.2. Attributes</a>
+    <li><a href="#ref-for-writablestream④">5.2. Constructor</a>
+    <li><a href="#ref-for-writablestream⑤">6. Interface WebTransportSendStream</a> <a href="#ref-for-writablestream⑥">(2)</a> <a href="#ref-for-writablestream⑦">(3)</a>
+    <li><a href="#ref-for-writablestream⑧">8. Interface WebTransportBidirectionalStream</a>
+    <li><a href="#ref-for-writablestream⑨">8.2. Attributes</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-default-writer-abort">
@@ -3537,13 +3703,13 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
   <aside class="dfn-panel" data-for="term-for-writablestream-set-up-abortalgorithm">
    <a href="https://streams.spec.whatwg.org/#writablestream-set-up-abortalgorithm">https://streams.spec.whatwg.org/#writablestream-set-up-abortalgorithm</a><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-writablestream-set-up-abortalgorithm">6.2. Procedures</a>
+    <li><a href="#ref-for-writablestream-set-up-abortalgorithm">6.3. Procedures</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-byob-reader">
    <a href="https://streams.spec.whatwg.org/#byob-reader">https://streams.spec.whatwg.org/#byob-reader</a><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-byob-reader">7. ReceiveStream</a>
+    <li><a href="#ref-for-byob-reader">7. Interface WebTransportReceiveStream</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-generic-reader-cancel">
@@ -3555,14 +3721,14 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
   <aside class="dfn-panel" data-for="term-for-readablestream-set-up-with-byte-reading-support-cancelalgorithm">
    <a href="https://streams.spec.whatwg.org/#readablestream-set-up-with-byte-reading-support-cancelalgorithm">https://streams.spec.whatwg.org/#readablestream-set-up-with-byte-reading-support-cancelalgorithm</a><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-readablestream-set-up-with-byte-reading-support-cancelalgorithm">7.2. Procedures</a>
+    <li><a href="#ref-for-readablestream-set-up-with-byte-reading-support-cancelalgorithm">7.3. Procedures</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-readablestream-close">
    <a href="https://streams.spec.whatwg.org/#readablestream-close">https://streams.spec.whatwg.org/#readablestream-close</a><b>Referenced in:</b>
    <ul>
     <li><a href="#ref-for-readablestream-close">5.5. Procedures</a> <a href="#ref-for-readablestream-close①">(2)</a>
-    <li><a href="#ref-for-readablestream-close②">7.2. Procedures</a>
+    <li><a href="#ref-for-readablestream-close②">7.3. Procedures</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-default-writer-close">
@@ -3574,19 +3740,19 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
   <aside class="dfn-panel" data-for="term-for-writablestream-set-up-closealgorithm">
    <a href="https://streams.spec.whatwg.org/#writablestream-set-up-closealgorithm">https://streams.spec.whatwg.org/#writablestream-set-up-closealgorithm</a><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-writablestream-set-up-closealgorithm">6.2. Procedures</a>
+    <li><a href="#ref-for-writablestream-set-up-closealgorithm">6.3. Procedures</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-readablestream-current-byob-request-view">
    <a href="https://streams.spec.whatwg.org/#readablestream-current-byob-request-view">https://streams.spec.whatwg.org/#readablestream-current-byob-request-view</a><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-readablestream-current-byob-request-view">7.2. Procedures</a> <a href="#ref-for-readablestream-current-byob-request-view①">(2)</a> <a href="#ref-for-readablestream-current-byob-request-view②">(3)</a> <a href="#ref-for-readablestream-current-byob-request-view③">(4)</a>
+    <li><a href="#ref-for-readablestream-current-byob-request-view">7.3. Procedures</a> <a href="#ref-for-readablestream-current-byob-request-view①">(2)</a> <a href="#ref-for-readablestream-current-byob-request-view②">(3)</a> <a href="#ref-for-readablestream-current-byob-request-view③">(4)</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-default-reader">
    <a href="https://streams.spec.whatwg.org/#default-reader">https://streams.spec.whatwg.org/#default-reader</a><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-default-reader">7. ReceiveStream</a>
+    <li><a href="#ref-for-default-reader">7. Interface WebTransportReceiveStream</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-readablestream-enqueue">
@@ -3594,14 +3760,14 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <ul>
     <li><a href="#ref-for-readablestream-enqueue">4.3. Procedures</a> <a href="#ref-for-readablestream-enqueue①">(2)</a>
     <li><a href="#ref-for-readablestream-enqueue②">5.2. Constructor</a> <a href="#ref-for-readablestream-enqueue③">(2)</a>
-    <li><a href="#ref-for-readablestream-enqueue④">7.2. Procedures</a>
+    <li><a href="#ref-for-readablestream-enqueue④">7.3. Procedures</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-writablestream-error">
    <a href="https://streams.spec.whatwg.org/#writablestream-error">https://streams.spec.whatwg.org/#writablestream-error</a><b>Referenced in:</b>
    <ul>
     <li><a href="#ref-for-writablestream-error">5.5. Procedures</a>
-    <li><a href="#ref-for-writablestream-error①">6.3. STOP_SENDING signal coming from the server</a>
+    <li><a href="#ref-for-writablestream-error①">6.4. STOP_SENDING signal coming from the server</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-high-water-mark">
@@ -3619,7 +3785,7 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
   <aside class="dfn-panel" data-for="term-for-readablestream-set-up-with-byte-reading-support-pullalgorithm">
    <a href="https://streams.spec.whatwg.org/#readablestream-set-up-with-byte-reading-support-pullalgorithm">https://streams.spec.whatwg.org/#readablestream-set-up-with-byte-reading-support-pullalgorithm</a><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-readablestream-set-up-with-byte-reading-support-pullalgorithm">7.2. Procedures</a>
+    <li><a href="#ref-for-readablestream-set-up-with-byte-reading-support-pullalgorithm">7.3. Procedures</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-default-reader-read">
@@ -3631,7 +3797,7 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
   <aside class="dfn-panel" data-for="term-for-readable-byte-stream">
    <a href="https://streams.spec.whatwg.org/#readable-byte-stream">https://streams.spec.whatwg.org/#readable-byte-stream</a><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-readable-byte-stream">7. ReceiveStream</a>
+    <li><a href="#ref-for-readable-byte-stream">7. Interface WebTransportReceiveStream</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-default-writer-ready">
@@ -3644,19 +3810,19 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <a href="https://streams.spec.whatwg.org/#writablestream-set-up">https://streams.spec.whatwg.org/#writablestream-set-up</a><b>Referenced in:</b>
    <ul>
     <li><a href="#ref-for-writablestream-set-up">5.2. Constructor</a>
-    <li><a href="#ref-for-writablestream-set-up①">6.2. Procedures</a>
+    <li><a href="#ref-for-writablestream-set-up①">6.3. Procedures</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-readablestream-set-up-with-byte-reading-support">
    <a href="https://streams.spec.whatwg.org/#readablestream-set-up-with-byte-reading-support">https://streams.spec.whatwg.org/#readablestream-set-up-with-byte-reading-support</a><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-readablestream-set-up-with-byte-reading-support">7.2. Procedures</a>
+    <li><a href="#ref-for-readablestream-set-up-with-byte-reading-support">7.3. Procedures</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-default-writer-write">
    <a href="https://streams.spec.whatwg.org/#default-writer-write">https://streams.spec.whatwg.org/#default-writer-write</a><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-default-writer-write">6.2. Procedures</a>
+    <li><a href="#ref-for-default-writer-write">6.3. Procedures</a>
     <li><a href="#ref-for-default-writer-write①">10. Protocol Mappings</a>
    </ul>
   </aside>
@@ -3664,7 +3830,7 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <a href="https://streams.spec.whatwg.org/#writablestream-set-up-writealgorithm">https://streams.spec.whatwg.org/#writablestream-set-up-writealgorithm</a><b>Referenced in:</b>
    <ul>
     <li><a href="#ref-for-writablestream-set-up-writealgorithm">5.2. Constructor</a>
-    <li><a href="#ref-for-writablestream-set-up-writealgorithm①">6.2. Procedures</a>
+    <li><a href="#ref-for-writablestream-set-up-writealgorithm①">6.3. Procedures</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-concept-url-fragment">
@@ -3700,7 +3866,7 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
   <aside class="dfn-panel" data-for="term-for-idl-ArrayBuffer">
    <a href="https://webidl.spec.whatwg.org/#idl-ArrayBuffer">https://webidl.spec.whatwg.org/#idl-ArrayBuffer</a><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-idl-ArrayBuffer">7.2. Procedures</a> <a href="#ref-for-idl-ArrayBuffer①">(2)</a>
+    <li><a href="#ref-for-idl-ArrayBuffer">7.3. Procedures</a> <a href="#ref-for-idl-ArrayBuffer①">(2)</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-BufferSource">
@@ -3708,7 +3874,7 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <ul>
     <li><a href="#ref-for-BufferSource">4.3. Procedures</a>
     <li><a href="#ref-for-BufferSource①">5.9. Configuration</a>
-    <li><a href="#ref-for-BufferSource②">6.2. Procedures</a>
+    <li><a href="#ref-for-BufferSource②">6.3. Procedures</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-Clamp">
@@ -3737,8 +3903,10 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <ul>
     <li><a href="#ref-for-Exposed">4. WebTransportDatagramDuplexStream Interface</a>
     <li><a href="#ref-for-Exposed①">5. WebTransport Interface</a>
-    <li><a href="#ref-for-Exposed②">8. Interface WebTransportBidirectionalStream</a>
-    <li><a href="#ref-for-Exposed③">9. WebTransportError Interface</a>
+    <li><a href="#ref-for-Exposed②">6. Interface WebTransportSendStream</a>
+    <li><a href="#ref-for-Exposed③">7. Interface WebTransportReceiveStream</a>
+    <li><a href="#ref-for-Exposed④">8. Interface WebTransportBidirectionalStream</a>
+    <li><a href="#ref-for-Exposed⑤">9. WebTransportError Interface</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-invalidstateerror">
@@ -3757,12 +3925,14 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <a href="https://webidl.spec.whatwg.org/#idl-promise">https://webidl.spec.whatwg.org/#idl-promise</a><b>Referenced in:</b>
    <ul>
     <li><a href="#ref-for-idl-promise">5. WebTransport Interface</a> <a href="#ref-for-idl-promise①">(2)</a> <a href="#ref-for-idl-promise②">(3)</a> <a href="#ref-for-idl-promise③">(4)</a> <a href="#ref-for-idl-promise④">(5)</a>
+    <li><a href="#ref-for-idl-promise⑤">6. Interface WebTransportSendStream</a>
+    <li><a href="#ref-for-idl-promise⑥">7. Interface WebTransportReceiveStream</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-exceptiondef-rangeerror">
    <a href="https://webidl.spec.whatwg.org/#exceptiondef-rangeerror">https://webidl.spec.whatwg.org/#exceptiondef-rangeerror</a><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-exceptiondef-rangeerror">7.2. Procedures</a>
+    <li><a href="#ref-for-exceptiondef-rangeerror">7.3. Procedures</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-SecureContext">
@@ -3770,8 +3940,10 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <ul>
     <li><a href="#ref-for-SecureContext">4. WebTransportDatagramDuplexStream Interface</a>
     <li><a href="#ref-for-SecureContext①">5. WebTransport Interface</a>
-    <li><a href="#ref-for-SecureContext②">8. Interface WebTransportBidirectionalStream</a>
-    <li><a href="#ref-for-SecureContext③">9. WebTransportError Interface</a>
+    <li><a href="#ref-for-SecureContext②">6. Interface WebTransportSendStream</a>
+    <li><a href="#ref-for-SecureContext③">7. Interface WebTransportReceiveStream</a>
+    <li><a href="#ref-for-SecureContext④">8. Interface WebTransportBidirectionalStream</a>
+    <li><a href="#ref-for-SecureContext⑤">9. WebTransportError Interface</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-syntaxerror">
@@ -3785,7 +3957,7 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <ul>
     <li><a href="#ref-for-exceptiondef-typeerror">4.3. Procedures</a>
     <li><a href="#ref-for-exceptiondef-typeerror①">5.2. Constructor</a>
-    <li><a href="#ref-for-exceptiondef-typeerror②">6.2. Procedures</a>
+    <li><a href="#ref-for-exceptiondef-typeerror②">6.3. Procedures</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-idl-USVString">
@@ -3798,16 +3970,17 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <a href="https://webidl.spec.whatwg.org/#idl-Uint8Array">https://webidl.spec.whatwg.org/#idl-Uint8Array</a><b>Referenced in:</b>
    <ul>
     <li><a href="#ref-for-idl-Uint8Array">4.3. Procedures</a> <a href="#ref-for-idl-Uint8Array①">(2)</a>
-    <li><a href="#ref-for-idl-Uint8Array②">7. ReceiveStream</a>
-    <li><a href="#ref-for-idl-Uint8Array③">7.2. Procedures</a>
+    <li><a href="#ref-for-idl-Uint8Array②">6. Interface WebTransportSendStream</a>
+    <li><a href="#ref-for-idl-Uint8Array③">7. Interface WebTransportReceiveStream</a>
+    <li><a href="#ref-for-idl-Uint8Array④">7.3. Procedures</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-a-promise-rejected-with">
    <a href="https://webidl.spec.whatwg.org/#a-promise-rejected-with">https://webidl.spec.whatwg.org/#a-promise-rejected-with</a><b>Referenced in:</b>
    <ul>
     <li><a href="#ref-for-a-promise-rejected-with">4.3. Procedures</a>
-    <li><a href="#ref-for-a-promise-rejected-with①">6.2. Procedures</a>
-    <li><a href="#ref-for-a-promise-rejected-with②">7.2. Procedures</a>
+    <li><a href="#ref-for-a-promise-rejected-with①">6.3. Procedures</a>
+    <li><a href="#ref-for-a-promise-rejected-with②">7.3. Procedures</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-a-promise-resolved-with">
@@ -3825,7 +3998,7 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
   <aside class="dfn-panel" data-for="term-for-buffersource-byte-length">
    <a href="https://webidl.spec.whatwg.org/#buffersource-byte-length">https://webidl.spec.whatwg.org/#buffersource-byte-length</a><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-buffersource-byte-length">7.2. Procedures</a>
+    <li><a href="#ref-for-buffersource-byte-length">7.3. Procedures</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-dom-domexception-code">
@@ -3856,10 +4029,12 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
     <li><a href="#ref-for-new①">5.2. Constructor</a> <a href="#ref-for-new②">(2)</a>
     <li><a href="#ref-for-new③">5.4. Methods</a>
     <li><a href="#ref-for-new④">5.6. Session termination not initiated by the client</a>
-    <li><a href="#ref-for-new⑤">6.2. Procedures</a>
-    <li><a href="#ref-for-new⑥">7.2. Procedures</a> <a href="#ref-for-new⑦">(2)</a>
-    <li><a href="#ref-for-new⑧">8.3. Procedures</a>
-    <li><a href="#ref-for-new⑨">9.4. Procedures</a>
+    <li><a href="#ref-for-new⑤">6.1. Methods</a>
+    <li><a href="#ref-for-new⑥">6.3. Procedures</a>
+    <li><a href="#ref-for-new⑦">7.1. Methods</a>
+    <li><a href="#ref-for-new⑧">7.3. Procedures</a> <a href="#ref-for-new⑨">(2)</a>
+    <li><a href="#ref-for-new①⓪">8.3. Procedures</a>
+    <li><a href="#ref-for-new①①">9.4. Procedures</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-dom-domexception-domexception">
@@ -3909,7 +4084,7 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
   <aside class="dfn-panel" data-for="term-for-buffersource-underlying-buffer">
    <a href="https://webidl.spec.whatwg.org/#buffersource-underlying-buffer">https://webidl.spec.whatwg.org/#buffersource-underlying-buffer</a><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-buffersource-underlying-buffer">7.2. Procedures</a>
+    <li><a href="#ref-for-buffersource-underlying-buffer">7.3. Procedures</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-idl-unsigned-long">
@@ -3926,19 +4101,21 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <ul>
     <li><a href="#ref-for-idl-unsigned-long-long">5.11. WebTransportStats Dictionary</a> <a href="#ref-for-idl-unsigned-long-long①">(2)</a> <a href="#ref-for-idl-unsigned-long-long②">(3)</a> <a href="#ref-for-idl-unsigned-long-long③">(4)</a> <a href="#ref-for-idl-unsigned-long-long④">(5)</a> <a href="#ref-for-idl-unsigned-long-long⑤">(6)</a> <a href="#ref-for-idl-unsigned-long-long⑥">(7)</a> <a href="#ref-for-idl-unsigned-long-long⑦">(8)</a> <a href="#ref-for-idl-unsigned-long-long⑧">(9)</a> <a href="#ref-for-idl-unsigned-long-long⑨">(10)</a>
     <li><a href="#ref-for-idl-unsigned-long-long①⓪">5.12. WebTransportDatagramStats Dictionary</a> <a href="#ref-for-idl-unsigned-long-long①①">(2)</a> <a href="#ref-for-idl-unsigned-long-long①②">(3)</a> <a href="#ref-for-idl-unsigned-long-long①③">(4)</a> <a href="#ref-for-idl-unsigned-long-long①④">(5)</a> <a href="#ref-for-idl-unsigned-long-long①⑤">(6)</a>
+    <li><a href="#ref-for-idl-unsigned-long-long①⑥">6.5. WebTransportSendStreamStats Dictionary</a> <a href="#ref-for-idl-unsigned-long-long①⑦">(2)</a> <a href="#ref-for-idl-unsigned-long-long①⑧">(3)</a> <a href="#ref-for-idl-unsigned-long-long①⑨">(4)</a> <a href="#ref-for-idl-unsigned-long-long②⓪">(5)</a> <a href="#ref-for-idl-unsigned-long-long②①">(6)</a>
+    <li><a href="#ref-for-idl-unsigned-long-long②②">7.5. WebTransportReceiveStreamStats Dictionary</a> <a href="#ref-for-idl-unsigned-long-long②③">(2)</a> <a href="#ref-for-idl-unsigned-long-long②④">(3)</a> <a href="#ref-for-idl-unsigned-long-long②⑤">(4)</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-upon-fulfillment">
    <a href="https://webidl.spec.whatwg.org/#upon-fulfillment">https://webidl.spec.whatwg.org/#upon-fulfillment</a><b>Referenced in:</b>
    <ul>
     <li><a href="#ref-for-upon-fulfillment">5.2. Constructor</a> <a href="#ref-for-upon-fulfillment①">(2)</a>
-    <li><a href="#ref-for-upon-fulfillment②">6.2. Procedures</a>
+    <li><a href="#ref-for-upon-fulfillment②">6.3. Procedures</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-arraybuffer-write">
    <a href="https://webidl.spec.whatwg.org/#arraybuffer-write">https://webidl.spec.whatwg.org/#arraybuffer-write</a><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-arraybuffer-write">7.2. Procedures</a>
+    <li><a href="#ref-for-arraybuffer-write">7.3. Procedures</a>
    </ul>
   </aside>
   <h3 class="no-num no-ref heading settled" id="index-defined-elsewhere"><span class="content">Terms defined by reference</span><a class="self-link" href="#index-defined-elsewhere"></a></h3>
@@ -4182,8 +4359,8 @@ <h2 class="no-num no-ref heading settled" id="idl-index"><span class="content">I
   /* a ReadableStream of WebTransportBidirectionalStream objects */
   <c- b>readonly</c-> <c- b>attribute</c-> <a data-link-type="idl-name" href="https://streams.spec.whatwg.org/#readablestream"><c- n>ReadableStream</c-></a> <a class="idl-code" data-link-type="attribute" data-readonly data-type="ReadableStream" href="#dom-webtransport-incomingbidirectionalstreams"><c- g>incomingBidirectionalStreams</c-></a>;
 
-  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise"><c- b>Promise</c-></a>&lt;<a data-link-type="idl-name" href="https://streams.spec.whatwg.org/#writablestream"><c- n>WritableStream</c-></a>> <a class="idl-code" data-link-type="method" href="#dom-webtransport-createunidirectionalstream"><c- g>createUnidirectionalStream</c-></a>();
-  /* a ReadableStream of ReceiveStreams */
+  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise"><c- b>Promise</c-></a>&lt;<a data-link-type="idl-name" href="#webtransportsendstream"><c- n>WebTransportSendStream</c-></a>> <a class="idl-code" data-link-type="method" href="#dom-webtransport-createunidirectionalstream"><c- g>createUnidirectionalStream</c-></a>();
+  /* a ReadableStream of WebTransportReceiveStream objects */
   <c- b>readonly</c-> <c- b>attribute</c-> <a data-link-type="idl-name" href="https://streams.spec.whatwg.org/#readablestream"><c- n>ReadableStream</c-></a> <a class="idl-code" data-link-type="attribute" data-readonly data-type="ReadableStream" href="#dom-webtransport-incomingunidirectionalstreams"><c- g>incomingUnidirectionalStreams</c-></a>;
 };
 
@@ -4231,6 +4408,29 @@ <h2 class="no-num no-ref heading settled" id="idl-index"><span class="content">I
   <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-unsigned-long-long"><c- b>unsigned</c-> <c- b>long</c-> <c- b>long</c-></a> <a class="idl-code" data-link-type="dict-member" data-type="unsigned long long " href="#dom-webtransportdatagramstats-lostoutgoing"><c- g>lostOutgoing</c-></a>;
 };
 
+[<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#Exposed"><c- g>Exposed</c-></a>=(<c- n>Window</c->,<c- n>Worker</c->), <a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#SecureContext"><c- g>SecureContext</c-></a>]
+<c- b>interface</c-> <a href="#webtransportsendstream"><code><c- g>WebTransportSendStream</c-></code></a> : <a data-link-type="idl-name" href="https://streams.spec.whatwg.org/#writablestream"><c- n>WritableStream</c-></a> {
+  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise"><c- b>Promise</c-></a>&lt;<a data-link-type="idl-name" href="#dictdef-webtransportsendstreamstats"><c- n>WebTransportSendStreamStats</c-></a>> <a class="idl-code" data-link-type="method" href="#dom-webtransportsendstream-getstats"><c- g>getStats</c-></a>();
+};
+
+<c- b>dictionary</c-> <a class="idl-code" data-link-type="dictionary" href="#dictdef-webtransportsendstreamstats"><c- g>WebTransportSendStreamStats</c-></a> {
+  <a data-link-type="idl-name" href="https://www.w3.org/TR/hr-time-2/#dom-domhighrestimestamp"><c- n>DOMHighResTimeStamp</c-></a> <a class="idl-code" data-link-type="dict-member" data-type="DOMHighResTimeStamp " href="#dom-webtransportsendstreamstats-timestamp"><c- g>timestamp</c-></a>;
+  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-unsigned-long-long"><c- b>unsigned</c-> <c- b>long</c-> <c- b>long</c-></a> <a class="idl-code" data-link-type="dict-member" data-type="unsigned long long " href="#dom-webtransportsendstreamstats-byteswritten"><c- g>bytesWritten</c-></a>;
+  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-unsigned-long-long"><c- b>unsigned</c-> <c- b>long</c-> <c- b>long</c-></a> <a class="idl-code" data-link-type="dict-member" data-type="unsigned long long " href="#dom-webtransportsendstreamstats-bytessent"><c- g>bytesSent</c-></a>;
+  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-unsigned-long-long"><c- b>unsigned</c-> <c- b>long</c-> <c- b>long</c-></a> <a class="idl-code" data-link-type="dict-member" data-type="unsigned long long " href="#dom-webtransportsendstreamstats-bytesacknowledged"><c- g>bytesAcknowledged</c-></a>;
+};
+
+[<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#Exposed"><c- g>Exposed</c-></a>=(<c- n>Window</c->,<c- n>Worker</c->), <a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#SecureContext"><c- g>SecureContext</c-></a>]
+<c- b>interface</c-> <a href="#webtransportreceivestream"><code><c- g>WebTransportReceiveStream</c-></code></a> : <a data-link-type="idl-name" href="https://streams.spec.whatwg.org/#readablestream"><c- n>ReadableStream</c-></a> {
+  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise"><c- b>Promise</c-></a>&lt;<a data-link-type="idl-name" href="#dictdef-webtransportreceivestreamstats"><c- n>WebTransportReceiveStreamStats</c-></a>> <a class="idl-code" data-link-type="method" href="#dom-webtransportreceivestream-getstats"><c- g>getStats</c-></a>();
+};
+
+<c- b>dictionary</c-> <a class="idl-code" data-link-type="dictionary" href="#dictdef-webtransportreceivestreamstats"><c- g>WebTransportReceiveStreamStats</c-></a> {
+  <a data-link-type="idl-name" href="https://www.w3.org/TR/hr-time-2/#dom-domhighrestimestamp"><c- n>DOMHighResTimeStamp</c-></a> <a class="idl-code" data-link-type="dict-member" data-type="DOMHighResTimeStamp " href="#dom-webtransportreceivestreamstats-timestamp"><c- g>timestamp</c-></a>;
+  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-unsigned-long-long"><c- b>unsigned</c-> <c- b>long</c-> <c- b>long</c-></a> <a class="idl-code" data-link-type="dict-member" data-type="unsigned long long " href="#dom-webtransportreceivestreamstats-bytesreceived"><c- g>bytesReceived</c-></a>;
+  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-unsigned-long-long"><c- b>unsigned</c-> <c- b>long</c-> <c- b>long</c-></a> <a class="idl-code" data-link-type="dict-member" data-type="unsigned long long " href="#dom-webtransportreceivestreamstats-bytesread"><c- g>bytesRead</c-></a>;
+};
+
 [<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#Exposed"><c- g>Exposed</c-></a>=(<c- n>Window</c->,<c- n>Worker</c->), <a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#SecureContext"><c- g>SecureContext</c-></a>]
 <c- b>interface</c-> <a href="#webtransportbidirectionalstream"><code><c- g>WebTransportBidirectionalStream</c-></code></a> {
   <c- b>readonly</c-> <c- b>attribute</c-> <a data-link-type="idl-name" href="https://streams.spec.whatwg.org/#readablestream"><c- n>ReadableStream</c-></a> <a class="idl-code" data-link-type="attribute" data-readonly data-type="ReadableStream" href="#dom-webtransportbidirectionalstream-readable"><c- g>readable</c-></a>;
@@ -4336,14 +4536,14 @@ <h2 class="no-num no-ref heading settled" id="issues-index"><span class="content
    <ul>
     <li><a href="#ref-for-webtransport-stream">3. Protocol concepts</a> <a href="#ref-for-webtransport-stream①">(2)</a> <a href="#ref-for-webtransport-stream②">(3)</a> <a href="#ref-for-webtransport-stream③">(4)</a>
     <li><a href="#ref-for-webtransport-stream④">5.4. Methods</a>
-    <li><a href="#ref-for-webtransport-stream⑤">6. SendStream</a>
-    <li><a href="#ref-for-webtransport-stream⑥">6.1. Internal Slots</a>
-    <li><a href="#ref-for-webtransport-stream⑦">6.2. Procedures</a>
-    <li><a href="#ref-for-webtransport-stream⑧">6.3. STOP_SENDING signal coming from the server</a>
-    <li><a href="#ref-for-webtransport-stream⑨">7. ReceiveStream</a>
-    <li><a href="#ref-for-webtransport-stream①⓪">7.1. Internal Slots</a>
-    <li><a href="#ref-for-webtransport-stream①①">7.2. Procedures</a>
-    <li><a href="#ref-for-webtransport-stream①②">7.3. Reset signal coming from the server</a>
+    <li><a href="#ref-for-webtransport-stream⑤">6. Interface WebTransportSendStream</a>
+    <li><a href="#ref-for-webtransport-stream⑥">6.2. Internal Slots</a>
+    <li><a href="#ref-for-webtransport-stream⑦">6.3. Procedures</a>
+    <li><a href="#ref-for-webtransport-stream⑧">6.4. STOP_SENDING signal coming from the server</a>
+    <li><a href="#ref-for-webtransport-stream⑨">7. Interface WebTransportReceiveStream</a>
+    <li><a href="#ref-for-webtransport-stream①⓪">7.2. Internal Slots</a>
+    <li><a href="#ref-for-webtransport-stream①①">7.3. Procedures</a>
+    <li><a href="#ref-for-webtransport-stream①②">7.4. Reset signal coming from the server</a>
     <li><a href="#ref-for-webtransport-stream①③">8.3. Procedures</a>
    </ul>
   </aside>
@@ -4351,69 +4551,69 @@ <h2 class="no-num no-ref heading settled" id="issues-index"><span class="content
    <b><a href="#stream-incoming-unidirectional">#stream-incoming-unidirectional</a></b><b>Referenced in:</b>
    <ul>
     <li><a href="#ref-for-stream-incoming-unidirectional">3. Protocol concepts</a> <a href="#ref-for-stream-incoming-unidirectional①">(2)</a> <a href="#ref-for-stream-incoming-unidirectional②">(3)</a>
-    <li><a href="#ref-for-stream-incoming-unidirectional③">7. ReceiveStream</a>
-    <li><a href="#ref-for-stream-incoming-unidirectional④">7.1. Internal Slots</a>
-    <li><a href="#ref-for-stream-incoming-unidirectional⑤">7.2. Procedures</a>
+    <li><a href="#ref-for-stream-incoming-unidirectional③">7. Interface WebTransportReceiveStream</a>
+    <li><a href="#ref-for-stream-incoming-unidirectional④">7.2. Internal Slots</a>
+    <li><a href="#ref-for-stream-incoming-unidirectional⑤">7.3. Procedures</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="stream-outgoing-unidirectional">
    <b><a href="#stream-outgoing-unidirectional">#stream-outgoing-unidirectional</a></b><b>Referenced in:</b>
    <ul>
     <li><a href="#ref-for-stream-outgoing-unidirectional">3. Protocol concepts</a> <a href="#ref-for-stream-outgoing-unidirectional①">(2)</a> <a href="#ref-for-stream-outgoing-unidirectional②">(3)</a>
-    <li><a href="#ref-for-stream-outgoing-unidirectional③">6. SendStream</a>
-    <li><a href="#ref-for-stream-outgoing-unidirectional④">6.1. Internal Slots</a>
-    <li><a href="#ref-for-stream-outgoing-unidirectional⑤">6.2. Procedures</a>
+    <li><a href="#ref-for-stream-outgoing-unidirectional③">6. Interface WebTransportSendStream</a>
+    <li><a href="#ref-for-stream-outgoing-unidirectional④">6.2. Internal Slots</a>
+    <li><a href="#ref-for-stream-outgoing-unidirectional⑤">6.3. Procedures</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="stream-bidirectional">
    <b><a href="#stream-bidirectional">#stream-bidirectional</a></b><b>Referenced in:</b>
    <ul>
     <li><a href="#ref-for-stream-bidirectional">3. Protocol concepts</a> <a href="#ref-for-stream-bidirectional①">(2)</a> <a href="#ref-for-stream-bidirectional②">(3)</a> <a href="#ref-for-stream-bidirectional③">(4)</a>
-    <li><a href="#ref-for-stream-bidirectional④">6. SendStream</a>
-    <li><a href="#ref-for-stream-bidirectional⑤">6.1. Internal Slots</a>
-    <li><a href="#ref-for-stream-bidirectional⑥">6.2. Procedures</a>
-    <li><a href="#ref-for-stream-bidirectional⑦">7. ReceiveStream</a>
-    <li><a href="#ref-for-stream-bidirectional⑧">7.1. Internal Slots</a>
-    <li><a href="#ref-for-stream-bidirectional⑨">7.2. Procedures</a>
+    <li><a href="#ref-for-stream-bidirectional④">6. Interface WebTransportSendStream</a>
+    <li><a href="#ref-for-stream-bidirectional⑤">6.2. Internal Slots</a>
+    <li><a href="#ref-for-stream-bidirectional⑥">6.3. Procedures</a>
+    <li><a href="#ref-for-stream-bidirectional⑦">7. Interface WebTransportReceiveStream</a>
+    <li><a href="#ref-for-stream-bidirectional⑧">7.2. Internal Slots</a>
+    <li><a href="#ref-for-stream-bidirectional⑨">7.3. Procedures</a>
     <li><a href="#ref-for-stream-bidirectional①⓪">8.3. Procedures</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="stream-send">
    <b><a href="#stream-send">#stream-send</a></b><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-stream-send">6.2. Procedures</a> <a href="#ref-for-stream-send①">(2)</a>
+    <li><a href="#ref-for-stream-send">6.3. Procedures</a> <a href="#ref-for-stream-send①">(2)</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="stream-receive">
    <b><a href="#stream-receive">#stream-receive</a></b><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-stream-receive">7.2. Procedures</a>
+    <li><a href="#ref-for-stream-receive">7.3. Procedures</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="stream-send-stop_sending">
    <b><a href="#stream-send-stop_sending">#stream-send-stop_sending</a></b><b>Referenced in:</b>
    <ul>
     <li><a href="#ref-for-stream-send-stop_sending">5.4. Methods</a>
-    <li><a href="#ref-for-stream-send-stop_sending①">7.2. Procedures</a>
+    <li><a href="#ref-for-stream-send-stop_sending①">7.3. Procedures</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="stream-reset">
    <b><a href="#stream-reset">#stream-reset</a></b><b>Referenced in:</b>
    <ul>
     <li><a href="#ref-for-stream-reset">5.4. Methods</a>
-    <li><a href="#ref-for-stream-reset①">6.2. Procedures</a>
+    <li><a href="#ref-for-stream-reset①">6.3. Procedures</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="stream-signal-stop_sending">
    <b><a href="#stream-signal-stop_sending">#stream-signal-stop_sending</a></b><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-stream-signal-stop_sending">6.3. STOP_SENDING signal coming from the server</a>
+    <li><a href="#ref-for-stream-signal-stop_sending">6.4. STOP_SENDING signal coming from the server</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="stream-signal-reset">
    <b><a href="#stream-signal-reset">#stream-signal-reset</a></b><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-stream-signal-reset">7.3. Reset signal coming from the server</a>
+    <li><a href="#ref-for-stream-signal-reset">7.4. Reset signal coming from the server</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="webtransportdatagramduplexstream">
@@ -4608,10 +4808,10 @@ <h2 class="no-num no-ref heading settled" id="issues-index"><span class="content
     <li><a href="#ref-for-webtransport②⓪">5.7. Context cleanup steps</a>
     <li><a href="#ref-for-webtransport②①">5.8. Garbage Collection</a>
     <li><a href="#ref-for-webtransport②②">5.10. WebTransportCloseInfo Dictionary</a> <a href="#ref-for-webtransport②③">(2)</a>
-    <li><a href="#ref-for-webtransport②④">6.1. Internal Slots</a>
-    <li><a href="#ref-for-webtransport②⑤">6.2. Procedures</a>
-    <li><a href="#ref-for-webtransport②⑥">7.1. Internal Slots</a>
-    <li><a href="#ref-for-webtransport②⑦">7.2. Procedures</a>
+    <li><a href="#ref-for-webtransport②④">6.2. Internal Slots</a>
+    <li><a href="#ref-for-webtransport②⑤">6.3. Procedures</a>
+    <li><a href="#ref-for-webtransport②⑥">7.2. Internal Slots</a>
+    <li><a href="#ref-for-webtransport②⑦">7.3. Procedures</a>
     <li><a href="#ref-for-webtransport②⑧">8.1. Internal slots</a>
     <li><a href="#ref-for-webtransport②⑨">8.3. Procedures</a>
     <li><a href="#ref-for-webtransport③⓪">13. Acknowledgements</a>
@@ -4649,9 +4849,9 @@ <h2 class="no-num no-ref heading settled" id="issues-index"><span class="content
     <li><a href="#ref-for-dom-webtransport-sendstreams-slot">5.2. Constructor</a>
     <li><a href="#ref-for-dom-webtransport-sendstreams-slot①">5.4. Methods</a>
     <li><a href="#ref-for-dom-webtransport-sendstreams-slot②">5.5. Procedures</a> <a href="#ref-for-dom-webtransport-sendstreams-slot③">(2)</a>
-    <li><a href="#ref-for-dom-webtransport-sendstreams-slot④">6.2. Procedures</a> <a href="#ref-for-dom-webtransport-sendstreams-slot⑤">(2)</a> <a href="#ref-for-dom-webtransport-sendstreams-slot⑥">(3)</a>
-    <li><a href="#ref-for-dom-webtransport-sendstreams-slot⑦">6.3. STOP_SENDING signal coming from the server</a>
-    <li><a href="#ref-for-dom-webtransport-sendstreams-slot⑧">7.2. Procedures</a>
+    <li><a href="#ref-for-dom-webtransport-sendstreams-slot④">6.3. Procedures</a> <a href="#ref-for-dom-webtransport-sendstreams-slot⑤">(2)</a> <a href="#ref-for-dom-webtransport-sendstreams-slot⑥">(3)</a>
+    <li><a href="#ref-for-dom-webtransport-sendstreams-slot⑦">6.4. STOP_SENDING signal coming from the server</a>
+    <li><a href="#ref-for-dom-webtransport-sendstreams-slot⑧">7.3. Procedures</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="dom-webtransport-receivestreams-slot">
@@ -4660,8 +4860,8 @@ <h2 class="no-num no-ref heading settled" id="issues-index"><span class="content
     <li><a href="#ref-for-dom-webtransport-receivestreams-slot">5.2. Constructor</a>
     <li><a href="#ref-for-dom-webtransport-receivestreams-slot①">5.4. Methods</a>
     <li><a href="#ref-for-dom-webtransport-receivestreams-slot②">5.5. Procedures</a> <a href="#ref-for-dom-webtransport-receivestreams-slot③">(2)</a>
-    <li><a href="#ref-for-dom-webtransport-receivestreams-slot④">7.2. Procedures</a> <a href="#ref-for-dom-webtransport-receivestreams-slot⑤">(2)</a> <a href="#ref-for-dom-webtransport-receivestreams-slot⑥">(3)</a>
-    <li><a href="#ref-for-dom-webtransport-receivestreams-slot⑦">7.3. Reset signal coming from the server</a>
+    <li><a href="#ref-for-dom-webtransport-receivestreams-slot④">7.3. Procedures</a> <a href="#ref-for-dom-webtransport-receivestreams-slot⑤">(2)</a> <a href="#ref-for-dom-webtransport-receivestreams-slot⑥">(3)</a>
+    <li><a href="#ref-for-dom-webtransport-receivestreams-slot⑦">7.4. Reset signal coming from the server</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="dom-webtransport-incomingbidirectionalstreams-slot">
@@ -4691,8 +4891,8 @@ <h2 class="no-num no-ref heading settled" id="issues-index"><span class="content
     <li><a href="#ref-for-dom-webtransport-state-slot②⑧">5.6. Session termination not initiated by the client</a> <a href="#ref-for-dom-webtransport-state-slot②⑨">(2)</a>
     <li><a href="#ref-for-dom-webtransport-state-slot③⓪">5.7. Context cleanup steps</a> <a href="#ref-for-dom-webtransport-state-slot③①">(2)</a> <a href="#ref-for-dom-webtransport-state-slot③②">(3)</a> <a href="#ref-for-dom-webtransport-state-slot③③">(4)</a>
     <li><a href="#ref-for-dom-webtransport-state-slot③④">5.8. Garbage Collection</a>
-    <li><a href="#ref-for-dom-webtransport-state-slot③⑤">6.3. STOP_SENDING signal coming from the server</a>
-    <li><a href="#ref-for-dom-webtransport-state-slot③⑥">7.3. Reset signal coming from the server</a>
+    <li><a href="#ref-for-dom-webtransport-state-slot③⑤">6.4. STOP_SENDING signal coming from the server</a>
+    <li><a href="#ref-for-dom-webtransport-state-slot③⑥">7.4. Reset signal coming from the server</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="dom-webtransport-ready-slot">
@@ -4835,10 +5035,12 @@ <h2 class="no-num no-ref heading settled" id="issues-index"><span class="content
     <li><a href="#ref-for-webtransport-queue-a-network-task③">5.2. Constructor</a> <a href="#ref-for-webtransport-queue-a-network-task④">(2)</a> <a href="#ref-for-webtransport-queue-a-network-task⑤">(3)</a> <a href="#ref-for-webtransport-queue-a-network-task⑥">(4)</a> <a href="#ref-for-webtransport-queue-a-network-task⑦">(5)</a> <a href="#ref-for-webtransport-queue-a-network-task⑧">(6)</a> <a href="#ref-for-webtransport-queue-a-network-task⑨">(7)</a>
     <li><a href="#ref-for-webtransport-queue-a-network-task①⓪">5.4. Methods</a> <a href="#ref-for-webtransport-queue-a-network-task①①">(2)</a> <a href="#ref-for-webtransport-queue-a-network-task①②">(3)</a> <a href="#ref-for-webtransport-queue-a-network-task①③">(4)</a> <a href="#ref-for-webtransport-queue-a-network-task①④">(5)</a>
     <li><a href="#ref-for-webtransport-queue-a-network-task①⑤">5.6. Session termination not initiated by the client</a> <a href="#ref-for-webtransport-queue-a-network-task①⑥">(2)</a>
-    <li><a href="#ref-for-webtransport-queue-a-network-task①⑦">6.2. Procedures</a> <a href="#ref-for-webtransport-queue-a-network-task①⑧">(2)</a> <a href="#ref-for-webtransport-queue-a-network-task①⑨">(3)</a>
-    <li><a href="#ref-for-webtransport-queue-a-network-task②⓪">6.3. STOP_SENDING signal coming from the server</a>
-    <li><a href="#ref-for-webtransport-queue-a-network-task②①">7.2. Procedures</a> <a href="#ref-for-webtransport-queue-a-network-task②②">(2)</a>
-    <li><a href="#ref-for-webtransport-queue-a-network-task②③">7.3. Reset signal coming from the server</a>
+    <li><a href="#ref-for-webtransport-queue-a-network-task①⑦">6.1. Methods</a>
+    <li><a href="#ref-for-webtransport-queue-a-network-task①⑧">6.3. Procedures</a> <a href="#ref-for-webtransport-queue-a-network-task①⑨">(2)</a> <a href="#ref-for-webtransport-queue-a-network-task②⓪">(3)</a>
+    <li><a href="#ref-for-webtransport-queue-a-network-task②①">6.4. STOP_SENDING signal coming from the server</a>
+    <li><a href="#ref-for-webtransport-queue-a-network-task②②">7.1. Methods</a>
+    <li><a href="#ref-for-webtransport-queue-a-network-task②③">7.3. Procedures</a> <a href="#ref-for-webtransport-queue-a-network-task②④">(2)</a>
+    <li><a href="#ref-for-webtransport-queue-a-network-task②⑤">7.4. Reset signal coming from the server</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="dictdef-webtransporthash">
@@ -5041,112 +5243,185 @@ <h2 class="no-num no-ref heading settled" id="issues-index"><span class="content
     <li><a href="#ref-for-dom-webtransportdatagramstats-lostoutgoing">5.12. WebTransportDatagramStats Dictionary</a>
    </ul>
   </aside>
-  <aside class="dfn-panel" data-for="sendstream">
-   <b><a href="#sendstream">#sendstream</a></b><b>Referenced in:</b>
+  <aside class="dfn-panel" data-for="webtransportsendstream">
+   <b><a href="#webtransportsendstream">#webtransportsendstream</a></b><b>Referenced in:</b>
+   <ul>
+    <li><a href="#ref-for-webtransportsendstream">5. WebTransport Interface</a>
+    <li><a href="#ref-for-webtransportsendstream①">5.1. Internal slots</a>
+    <li><a href="#ref-for-webtransportsendstream②">5.4. Methods</a> <a href="#ref-for-webtransportsendstream③">(2)</a>
+    <li><a href="#ref-for-webtransportsendstream④">6. Interface WebTransportSendStream</a> <a href="#ref-for-webtransportsendstream⑤">(2)</a>
+    <li><a href="#ref-for-webtransportsendstream⑥">6.1. Methods</a> <a href="#ref-for-webtransportsendstream⑦">(2)</a>
+    <li><a href="#ref-for-webtransportsendstream⑧">6.2. Internal Slots</a> <a href="#ref-for-webtransportsendstream⑨">(2)</a>
+    <li><a href="#ref-for-webtransportsendstream①⓪">6.3. Procedures</a> <a href="#ref-for-webtransportsendstream①①">(2)</a> <a href="#ref-for-webtransportsendstream①②">(3)</a> <a href="#ref-for-webtransportsendstream①③">(4)</a> <a href="#ref-for-webtransportsendstream①④">(5)</a> <a href="#ref-for-webtransportsendstream①⑤">(6)</a>
+    <li><a href="#ref-for-webtransportsendstream①⑥">6.4. STOP_SENDING signal coming from the server</a>
+    <li><a href="#ref-for-webtransportsendstream①⑦">6.5. WebTransportSendStreamStats Dictionary</a> <a href="#ref-for-webtransportsendstream①⑧">(2)</a> <a href="#ref-for-webtransportsendstream①⑨">(3)</a> <a href="#ref-for-webtransportsendstream②⓪">(4)</a>
+    <li><a href="#ref-for-webtransportsendstream②①">8.1. Internal slots</a>
+    <li><a href="#ref-for-webtransportsendstream②②">8.3. Procedures</a>
+   </ul>
+  </aside>
+  <aside class="dfn-panel" data-for="dom-webtransportsendstream-getstats">
+   <b><a href="#dom-webtransportsendstream-getstats">#dom-webtransportsendstream-getstats</a></b><b>Referenced in:</b>
+   <ul>
+    <li><a href="#ref-for-dom-webtransportsendstream-getstats">6. Interface WebTransportSendStream</a>
+   </ul>
+  </aside>
+  <aside class="dfn-panel" data-for="dom-webtransportsendstream-internalstream-slot">
+   <b><a href="#dom-webtransportsendstream-internalstream-slot">#dom-webtransportsendstream-internalstream-slot</a></b><b>Referenced in:</b>
+   <ul>
+    <li><a href="#ref-for-dom-webtransportsendstream-internalstream-slot">6.3. Procedures</a> <a href="#ref-for-dom-webtransportsendstream-internalstream-slot①">(2)</a> <a href="#ref-for-dom-webtransportsendstream-internalstream-slot②">(3)</a> <a href="#ref-for-dom-webtransportsendstream-internalstream-slot③">(4)</a> <a href="#ref-for-dom-webtransportsendstream-internalstream-slot④">(5)</a>
+   </ul>
+  </aside>
+  <aside class="dfn-panel" data-for="dom-webtransportsendstream-pendingoperation-slot">
+   <b><a href="#dom-webtransportsendstream-pendingoperation-slot">#dom-webtransportsendstream-pendingoperation-slot</a></b><b>Referenced in:</b>
+   <ul>
+    <li><a href="#ref-for-dom-webtransportsendstream-pendingoperation-slot">6.3. Procedures</a> <a href="#ref-for-dom-webtransportsendstream-pendingoperation-slot①">(2)</a> <a href="#ref-for-dom-webtransportsendstream-pendingoperation-slot②">(3)</a> <a href="#ref-for-dom-webtransportsendstream-pendingoperation-slot③">(4)</a> <a href="#ref-for-dom-webtransportsendstream-pendingoperation-slot④">(5)</a> <a href="#ref-for-dom-webtransportsendstream-pendingoperation-slot⑤">(6)</a> <a href="#ref-for-dom-webtransportsendstream-pendingoperation-slot⑥">(7)</a> <a href="#ref-for-dom-webtransportsendstream-pendingoperation-slot⑦">(8)</a>
+   </ul>
+  </aside>
+  <aside class="dfn-panel" data-for="dom-webtransportsendstream-transport-slot">
+   <b><a href="#dom-webtransportsendstream-transport-slot">#dom-webtransportsendstream-transport-slot</a></b><b>Referenced in:</b>
+   <ul>
+    <li><a href="#ref-for-dom-webtransportsendstream-transport-slot">6.3. Procedures</a> <a href="#ref-for-dom-webtransportsendstream-transport-slot①">(2)</a> <a href="#ref-for-dom-webtransportsendstream-transport-slot②">(3)</a> <a href="#ref-for-dom-webtransportsendstream-transport-slot③">(4)</a>
+    <li><a href="#ref-for-dom-webtransportsendstream-transport-slot④">6.4. STOP_SENDING signal coming from the server</a>
+   </ul>
+  </aside>
+  <aside class="dfn-panel" data-for="webtransportsendstream-create">
+   <b><a href="#webtransportsendstream-create">#webtransportsendstream-create</a></b><b>Referenced in:</b>
+   <ul>
+    <li><a href="#ref-for-webtransportsendstream-create">5.4. Methods</a>
+    <li><a href="#ref-for-webtransportsendstream-create①">6. Interface WebTransportSendStream</a>
+    <li><a href="#ref-for-webtransportsendstream-create②">8.3. Procedures</a>
+   </ul>
+  </aside>
+  <aside class="dfn-panel" data-for="webtransportsendstream-write">
+   <b><a href="#webtransportsendstream-write">#webtransportsendstream-write</a></b><b>Referenced in:</b>
+   <ul>
+    <li><a href="#ref-for-webtransportsendstream-write">6.3. Procedures</a>
+   </ul>
+  </aside>
+  <aside class="dfn-panel" data-for="webtransportsendstream-close">
+   <b><a href="#webtransportsendstream-close">#webtransportsendstream-close</a></b><b>Referenced in:</b>
+   <ul>
+    <li><a href="#ref-for-webtransportsendstream-close">6.3. Procedures</a>
+   </ul>
+  </aside>
+  <aside class="dfn-panel" data-for="webtransportsendstream-abort">
+   <b><a href="#webtransportsendstream-abort">#webtransportsendstream-abort</a></b><b>Referenced in:</b>
+   <ul>
+    <li><a href="#ref-for-webtransportsendstream-abort">6.3. Procedures</a> <a href="#ref-for-webtransportsendstream-abort①">(2)</a>
+   </ul>
+  </aside>
+  <aside class="dfn-panel" data-for="dictdef-webtransportsendstreamstats">
+   <b><a href="#dictdef-webtransportsendstreamstats">#dictdef-webtransportsendstreamstats</a></b><b>Referenced in:</b>
+   <ul>
+    <li><a href="#ref-for-dictdef-webtransportsendstreamstats">6. Interface WebTransportSendStream</a>
+    <li><a href="#ref-for-dictdef-webtransportsendstreamstats①">6.1. Methods</a>
+    <li><a href="#ref-for-dictdef-webtransportsendstreamstats②">6.5. WebTransportSendStreamStats Dictionary</a>
+   </ul>
+  </aside>
+  <aside class="dfn-panel" data-for="dom-webtransportsendstreamstats-timestamp">
+   <b><a href="#dom-webtransportsendstreamstats-timestamp">#dom-webtransportsendstreamstats-timestamp</a></b><b>Referenced in:</b>
+   <ul>
+    <li><a href="#ref-for-dom-webtransportsendstreamstats-timestamp">6.5. WebTransportSendStreamStats Dictionary</a>
+   </ul>
+  </aside>
+  <aside class="dfn-panel" data-for="dom-webtransportsendstreamstats-byteswritten">
+   <b><a href="#dom-webtransportsendstreamstats-byteswritten">#dom-webtransportsendstreamstats-byteswritten</a></b><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-sendstream">5.1. Internal slots</a>
-    <li><a href="#ref-for-sendstream①">5.4. Methods</a> <a href="#ref-for-sendstream②">(2)</a>
-    <li><a href="#ref-for-sendstream③">6. SendStream</a> <a href="#ref-for-sendstream④">(2)</a>
-    <li><a href="#ref-for-sendstream⑤">6.1. Internal Slots</a> <a href="#ref-for-sendstream⑥">(2)</a> <a href="#ref-for-sendstream⑦">(3)</a>
-    <li><a href="#ref-for-sendstream⑧">6.2. Procedures</a> <a href="#ref-for-sendstream⑨">(2)</a> <a href="#ref-for-sendstream①⓪">(3)</a> <a href="#ref-for-sendstream①①">(4)</a> <a href="#ref-for-sendstream①②">(5)</a>
-    <li><a href="#ref-for-sendstream①③">6.3. STOP_SENDING signal coming from the server</a>
-    <li><a href="#ref-for-sendstream①④">8.1. Internal slots</a>
-    <li><a href="#ref-for-sendstream①⑤">8.3. Procedures</a>
+    <li><a href="#ref-for-dom-webtransportsendstreamstats-byteswritten">6.5. WebTransportSendStreamStats Dictionary</a> <a href="#ref-for-dom-webtransportsendstreamstats-byteswritten①">(2)</a>
    </ul>
   </aside>
-  <aside class="dfn-panel" data-for="dom-sendstream-internalstream-slot">
-   <b><a href="#dom-sendstream-internalstream-slot">#dom-sendstream-internalstream-slot</a></b><b>Referenced in:</b>
+  <aside class="dfn-panel" data-for="dom-webtransportsendstreamstats-bytessent">
+   <b><a href="#dom-webtransportsendstreamstats-bytessent">#dom-webtransportsendstreamstats-bytessent</a></b><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-dom-sendstream-internalstream-slot">6.2. Procedures</a> <a href="#ref-for-dom-sendstream-internalstream-slot①">(2)</a> <a href="#ref-for-dom-sendstream-internalstream-slot②">(3)</a> <a href="#ref-for-dom-sendstream-internalstream-slot③">(4)</a> <a href="#ref-for-dom-sendstream-internalstream-slot④">(5)</a>
+    <li><a href="#ref-for-dom-webtransportsendstreamstats-bytessent">6.5. WebTransportSendStreamStats Dictionary</a> <a href="#ref-for-dom-webtransportsendstreamstats-bytessent①">(2)</a> <a href="#ref-for-dom-webtransportsendstreamstats-bytessent②">(3)</a>
    </ul>
   </aside>
-  <aside class="dfn-panel" data-for="dom-sendstream-pendingoperation-slot">
-   <b><a href="#dom-sendstream-pendingoperation-slot">#dom-sendstream-pendingoperation-slot</a></b><b>Referenced in:</b>
+  <aside class="dfn-panel" data-for="dom-webtransportsendstreamstats-bytesacknowledged">
+   <b><a href="#dom-webtransportsendstreamstats-bytesacknowledged">#dom-webtransportsendstreamstats-bytesacknowledged</a></b><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-dom-sendstream-pendingoperation-slot">6.2. Procedures</a> <a href="#ref-for-dom-sendstream-pendingoperation-slot①">(2)</a> <a href="#ref-for-dom-sendstream-pendingoperation-slot②">(3)</a> <a href="#ref-for-dom-sendstream-pendingoperation-slot③">(4)</a> <a href="#ref-for-dom-sendstream-pendingoperation-slot④">(5)</a> <a href="#ref-for-dom-sendstream-pendingoperation-slot⑤">(6)</a> <a href="#ref-for-dom-sendstream-pendingoperation-slot⑥">(7)</a> <a href="#ref-for-dom-sendstream-pendingoperation-slot⑦">(8)</a>
+    <li><a href="#ref-for-dom-webtransportsendstreamstats-bytesacknowledged">6.5. WebTransportSendStreamStats Dictionary</a>
    </ul>
   </aside>
-  <aside class="dfn-panel" data-for="dom-sendstream-transport-slot">
-   <b><a href="#dom-sendstream-transport-slot">#dom-sendstream-transport-slot</a></b><b>Referenced in:</b>
+  <aside class="dfn-panel" data-for="webtransportreceivestream">
+   <b><a href="#webtransportreceivestream">#webtransportreceivestream</a></b><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-dom-sendstream-transport-slot">6.2. Procedures</a> <a href="#ref-for-dom-sendstream-transport-slot①">(2)</a> <a href="#ref-for-dom-sendstream-transport-slot②">(3)</a> <a href="#ref-for-dom-sendstream-transport-slot③">(4)</a>
-    <li><a href="#ref-for-dom-sendstream-transport-slot④">6.3. STOP_SENDING signal coming from the server</a>
+    <li><a href="#ref-for-webtransportreceivestream">5.1. Internal slots</a> <a href="#ref-for-webtransportreceivestream①">(2)</a>
+    <li><a href="#ref-for-webtransportreceivestream②">5.2. Constructor</a>
+    <li><a href="#ref-for-webtransportreceivestream③">5.3. Attributes</a>
+    <li><a href="#ref-for-webtransportreceivestream④">7. Interface WebTransportReceiveStream</a> <a href="#ref-for-webtransportreceivestream⑤">(2)</a> <a href="#ref-for-webtransportreceivestream⑥">(3)</a> <a href="#ref-for-webtransportreceivestream⑦">(4)</a>
+    <li><a href="#ref-for-webtransportreceivestream⑧">7.1. Methods</a> <a href="#ref-for-webtransportreceivestream⑨">(2)</a>
+    <li><a href="#ref-for-webtransportreceivestream①⓪">7.2. Internal Slots</a> <a href="#ref-for-webtransportreceivestream①①">(2)</a>
+    <li><a href="#ref-for-webtransportreceivestream①②">7.3. Procedures</a> <a href="#ref-for-webtransportreceivestream①③">(2)</a> <a href="#ref-for-webtransportreceivestream①④">(3)</a> <a href="#ref-for-webtransportreceivestream①⑤">(4)</a>
+    <li><a href="#ref-for-webtransportreceivestream①⑥">7.4. Reset signal coming from the server</a>
+    <li><a href="#ref-for-webtransportreceivestream①⑦">7.5. WebTransportReceiveStreamStats Dictionary</a> <a href="#ref-for-webtransportreceivestream①⑧">(2)</a> <a href="#ref-for-webtransportreceivestream①⑨">(3)</a>
+    <li><a href="#ref-for-webtransportreceivestream②⓪">8.1. Internal slots</a>
+    <li><a href="#ref-for-webtransportreceivestream②①">8.3. Procedures</a>
+    <li><a href="#ref-for-webtransportreceivestream②②">12.5. Receiving incoming streams</a>
    </ul>
   </aside>
-  <aside class="dfn-panel" data-for="sendstream-create">
-   <b><a href="#sendstream-create">#sendstream-create</a></b><b>Referenced in:</b>
+  <aside class="dfn-panel" data-for="dom-webtransportreceivestream-getstats">
+   <b><a href="#dom-webtransportreceivestream-getstats">#dom-webtransportreceivestream-getstats</a></b><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-sendstream-create">5.4. Methods</a>
-    <li><a href="#ref-for-sendstream-create①">6. SendStream</a>
-    <li><a href="#ref-for-sendstream-create②">6.1. Internal Slots</a>
-    <li><a href="#ref-for-sendstream-create③">8.3. Procedures</a>
+    <li><a href="#ref-for-dom-webtransportreceivestream-getstats">7. Interface WebTransportReceiveStream</a>
    </ul>
   </aside>
-  <aside class="dfn-panel" data-for="sendstream-write">
-   <b><a href="#sendstream-write">#sendstream-write</a></b><b>Referenced in:</b>
+  <aside class="dfn-panel" data-for="dom-webtransportreceivestream-internalstream-slot">
+   <b><a href="#dom-webtransportreceivestream-internalstream-slot">#dom-webtransportreceivestream-internalstream-slot</a></b><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-sendstream-write">6.2. Procedures</a>
+    <li><a href="#ref-for-dom-webtransportreceivestream-internalstream-slot">7.3. Procedures</a> <a href="#ref-for-dom-webtransportreceivestream-internalstream-slot①">(2)</a> <a href="#ref-for-dom-webtransportreceivestream-internalstream-slot②">(3)</a>
    </ul>
   </aside>
-  <aside class="dfn-panel" data-for="sendstream-close">
-   <b><a href="#sendstream-close">#sendstream-close</a></b><b>Referenced in:</b>
+  <aside class="dfn-panel" data-for="dom-webtransportreceivestream-transport-slot">
+   <b><a href="#dom-webtransportreceivestream-transport-slot">#dom-webtransportreceivestream-transport-slot</a></b><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-sendstream-close">6.2. Procedures</a>
+    <li><a href="#ref-for-dom-webtransportreceivestream-transport-slot">7.3. Procedures</a> <a href="#ref-for-dom-webtransportreceivestream-transport-slot①">(2)</a> <a href="#ref-for-dom-webtransportreceivestream-transport-slot②">(3)</a>
+    <li><a href="#ref-for-dom-webtransportreceivestream-transport-slot③">7.4. Reset signal coming from the server</a>
    </ul>
   </aside>
-  <aside class="dfn-panel" data-for="sendstream-abort">
-   <b><a href="#sendstream-abort">#sendstream-abort</a></b><b>Referenced in:</b>
+  <aside class="dfn-panel" data-for="webtransportreceivestream-create">
+   <b><a href="#webtransportreceivestream-create">#webtransportreceivestream-create</a></b><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-sendstream-abort">6.2. Procedures</a> <a href="#ref-for-sendstream-abort①">(2)</a>
+    <li><a href="#ref-for-webtransportreceivestream-create">5.2. Constructor</a>
+    <li><a href="#ref-for-webtransportreceivestream-create①">7. Interface WebTransportReceiveStream</a> <a href="#ref-for-webtransportreceivestream-create②">(2)</a>
+    <li><a href="#ref-for-webtransportreceivestream-create③">8.3. Procedures</a>
    </ul>
   </aside>
-  <aside class="dfn-panel" data-for="receivestream">
-   <b><a href="#receivestream">#receivestream</a></b><b>Referenced in:</b>
+  <aside class="dfn-panel" data-for="webtransportreceivestream-pull-bytes">
+   <b><a href="#webtransportreceivestream-pull-bytes">#webtransportreceivestream-pull-bytes</a></b><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-receivestream">5.1. Internal slots</a> <a href="#ref-for-receivestream①">(2)</a>
-    <li><a href="#ref-for-receivestream②">5.2. Constructor</a>
-    <li><a href="#ref-for-receivestream③">5.3. Attributes</a>
-    <li><a href="#ref-for-receivestream④">7. ReceiveStream</a> <a href="#ref-for-receivestream⑤">(2)</a> <a href="#ref-for-receivestream⑥">(3)</a> <a href="#ref-for-receivestream⑦">(4)</a>
-    <li><a href="#ref-for-receivestream⑧">7.1. Internal Slots</a> <a href="#ref-for-receivestream⑨">(2)</a> <a href="#ref-for-receivestream①⓪">(3)</a>
-    <li><a href="#ref-for-receivestream①①">7.2. Procedures</a> <a href="#ref-for-receivestream①②">(2)</a> <a href="#ref-for-receivestream①③">(3)</a>
-    <li><a href="#ref-for-receivestream①④">7.3. Reset signal coming from the server</a>
-    <li><a href="#ref-for-receivestream①⑤">8.1. Internal slots</a>
-    <li><a href="#ref-for-receivestream①⑥">8.3. Procedures</a>
-    <li><a href="#ref-for-receivestream①⑦">12.5. Receiving incoming streams</a>
+    <li><a href="#ref-for-webtransportreceivestream-pull-bytes">7.3. Procedures</a>
    </ul>
   </aside>
-  <aside class="dfn-panel" data-for="dom-receivestream-internalstream-slot">
-   <b><a href="#dom-receivestream-internalstream-slot">#dom-receivestream-internalstream-slot</a></b><b>Referenced in:</b>
+  <aside class="dfn-panel" data-for="webtransportreceivestream-cancel">
+   <b><a href="#webtransportreceivestream-cancel">#webtransportreceivestream-cancel</a></b><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-dom-receivestream-internalstream-slot">7.2. Procedures</a> <a href="#ref-for-dom-receivestream-internalstream-slot①">(2)</a> <a href="#ref-for-dom-receivestream-internalstream-slot②">(3)</a>
+    <li><a href="#ref-for-webtransportreceivestream-cancel">7.3. Procedures</a>
    </ul>
   </aside>
-  <aside class="dfn-panel" data-for="dom-receivestream-transport-slot">
-   <b><a href="#dom-receivestream-transport-slot">#dom-receivestream-transport-slot</a></b><b>Referenced in:</b>
+  <aside class="dfn-panel" data-for="dictdef-webtransportreceivestreamstats">
+   <b><a href="#dictdef-webtransportreceivestreamstats">#dictdef-webtransportreceivestreamstats</a></b><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-dom-receivestream-transport-slot">7.2. Procedures</a> <a href="#ref-for-dom-receivestream-transport-slot①">(2)</a> <a href="#ref-for-dom-receivestream-transport-slot②">(3)</a>
-    <li><a href="#ref-for-dom-receivestream-transport-slot③">7.3. Reset signal coming from the server</a>
+    <li><a href="#ref-for-dictdef-webtransportreceivestreamstats">7. Interface WebTransportReceiveStream</a>
+    <li><a href="#ref-for-dictdef-webtransportreceivestreamstats①">7.1. Methods</a>
+    <li><a href="#ref-for-dictdef-webtransportreceivestreamstats②">7.5. WebTransportReceiveStreamStats Dictionary</a>
    </ul>
   </aside>
-  <aside class="dfn-panel" data-for="receivestream-create">
-   <b><a href="#receivestream-create">#receivestream-create</a></b><b>Referenced in:</b>
+  <aside class="dfn-panel" data-for="dom-webtransportreceivestreamstats-timestamp">
+   <b><a href="#dom-webtransportreceivestreamstats-timestamp">#dom-webtransportreceivestreamstats-timestamp</a></b><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-receivestream-create">5.2. Constructor</a>
-    <li><a href="#ref-for-receivestream-create①">7. ReceiveStream</a>
-    <li><a href="#ref-for-receivestream-create②">7.1. Internal Slots</a>
-    <li><a href="#ref-for-receivestream-create③">8.3. Procedures</a>
+    <li><a href="#ref-for-dom-webtransportreceivestreamstats-timestamp">7.5. WebTransportReceiveStreamStats Dictionary</a>
    </ul>
   </aside>
-  <aside class="dfn-panel" data-for="receivestream-pull-bytes">
-   <b><a href="#receivestream-pull-bytes">#receivestream-pull-bytes</a></b><b>Referenced in:</b>
+  <aside class="dfn-panel" data-for="dom-webtransportreceivestreamstats-bytesreceived">
+   <b><a href="#dom-webtransportreceivestreamstats-bytesreceived">#dom-webtransportreceivestreamstats-bytesreceived</a></b><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-receivestream-pull-bytes">7.2. Procedures</a>
+    <li><a href="#ref-for-dom-webtransportreceivestreamstats-bytesreceived">7.5. WebTransportReceiveStreamStats Dictionary</a> <a href="#ref-for-dom-webtransportreceivestreamstats-bytesreceived①">(2)</a>
    </ul>
   </aside>
-  <aside class="dfn-panel" data-for="receivestream-cancel">
-   <b><a href="#receivestream-cancel">#receivestream-cancel</a></b><b>Referenced in:</b>
+  <aside class="dfn-panel" data-for="dom-webtransportreceivestreamstats-bytesread">
+   <b><a href="#dom-webtransportreceivestreamstats-bytesread">#dom-webtransportreceivestreamstats-bytesread</a></b><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-receivestream-cancel">7.2. Procedures</a>
+    <li><a href="#ref-for-dom-webtransportreceivestreamstats-bytesread">7.5. WebTransportReceiveStreamStats Dictionary</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="webtransportbidirectionalstream">
@@ -5208,10 +5483,10 @@ <h2 class="no-num no-ref heading settled" id="issues-index"><span class="content
     <li><a href="#ref-for-webtransporterror">5.2. Constructor</a> <a href="#ref-for-webtransporterror①">(2)</a> <a href="#ref-for-webtransporterror②">(3)</a> <a href="#ref-for-webtransporterror③">(4)</a>
     <li><a href="#ref-for-webtransporterror④">5.4. Methods</a>
     <li><a href="#ref-for-webtransporterror⑤">5.6. Session termination not initiated by the client</a> <a href="#ref-for-webtransporterror⑥">(2)</a>
-    <li><a href="#ref-for-webtransporterror⑦">6.2. Procedures</a>
-    <li><a href="#ref-for-webtransporterror⑧">6.3. STOP_SENDING signal coming from the server</a>
-    <li><a href="#ref-for-webtransporterror⑨">7.2. Procedures</a>
-    <li><a href="#ref-for-webtransporterror①⓪">7.3. Reset signal coming from the server</a>
+    <li><a href="#ref-for-webtransporterror⑦">6.3. Procedures</a>
+    <li><a href="#ref-for-webtransporterror⑧">6.4. STOP_SENDING signal coming from the server</a>
+    <li><a href="#ref-for-webtransporterror⑨">7.3. Procedures</a>
+    <li><a href="#ref-for-webtransporterror①⓪">7.4. Reset signal coming from the server</a>
     <li><a href="#ref-for-webtransporterror①①">9. WebTransportError Interface</a>
     <li><a href="#ref-for-webtransporterror①②">9.1. Internal slots</a>
     <li><a href="#ref-for-webtransporterror①③">9.4. Procedures</a> <a href="#ref-for-webtransporterror①④">(2)</a> <a href="#ref-for-webtransporterror①⑤">(3)</a>
@@ -5254,10 +5529,10 @@ <h2 class="no-num no-ref heading settled" id="issues-index"><span class="content
   <aside class="dfn-panel" data-for="dom-webtransporterror-streamerrorcode-slot">
    <b><a href="#dom-webtransporterror-streamerrorcode-slot">#dom-webtransporterror-streamerrorcode-slot</a></b><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-dom-webtransporterror-streamerrorcode-slot">6.2. Procedures</a> <a href="#ref-for-dom-webtransporterror-streamerrorcode-slot①">(2)</a>
-    <li><a href="#ref-for-dom-webtransporterror-streamerrorcode-slot②">6.3. STOP_SENDING signal coming from the server</a>
-    <li><a href="#ref-for-dom-webtransporterror-streamerrorcode-slot③">7.2. Procedures</a> <a href="#ref-for-dom-webtransporterror-streamerrorcode-slot④">(2)</a>
-    <li><a href="#ref-for-dom-webtransporterror-streamerrorcode-slot⑤">7.3. Reset signal coming from the server</a>
+    <li><a href="#ref-for-dom-webtransporterror-streamerrorcode-slot">6.3. Procedures</a> <a href="#ref-for-dom-webtransporterror-streamerrorcode-slot①">(2)</a>
+    <li><a href="#ref-for-dom-webtransporterror-streamerrorcode-slot②">6.4. STOP_SENDING signal coming from the server</a>
+    <li><a href="#ref-for-dom-webtransporterror-streamerrorcode-slot③">7.3. Procedures</a> <a href="#ref-for-dom-webtransporterror-streamerrorcode-slot④">(2)</a>
+    <li><a href="#ref-for-dom-webtransporterror-streamerrorcode-slot⑤">7.4. Reset signal coming from the server</a>
     <li><a href="#ref-for-dom-webtransporterror-streamerrorcode-slot⑥">9.2. Constructor</a>
     <li><a href="#ref-for-dom-webtransporterror-streamerrorcode-slot⑦">9.3. Attributes</a>
     <li><a href="#ref-for-dom-webtransporterror-streamerrorcode-slot⑧">9.4. Procedures</a>
@@ -5287,8 +5562,8 @@ <h2 class="no-num no-ref heading settled" id="issues-index"><span class="content
     <li><a href="#ref-for-webtransporterror-create">5.2. Constructor</a> <a href="#ref-for-webtransporterror-create①">(2)</a> <a href="#ref-for-webtransporterror-create②">(3)</a> <a href="#ref-for-webtransporterror-create③">(4)</a>
     <li><a href="#ref-for-webtransporterror-create④">5.4. Methods</a>
     <li><a href="#ref-for-webtransporterror-create⑤">5.6. Session termination not initiated by the client</a> <a href="#ref-for-webtransporterror-create⑥">(2)</a>
-    <li><a href="#ref-for-webtransporterror-create⑦">6.3. STOP_SENDING signal coming from the server</a>
-    <li><a href="#ref-for-webtransporterror-create⑧">7.3. Reset signal coming from the server</a>
+    <li><a href="#ref-for-webtransporterror-create⑦">6.4. STOP_SENDING signal coming from the server</a>
+    <li><a href="#ref-for-webtransporterror-create⑧">7.4. Reset signal coming from the server</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="webtransporterror-set-up">