Ignore unique <var>s

Re #1215

sections/infrastructure.include

@@ -3316,7 +3316,7 @@ It covers
   the document.
 
   The <dfn export>rules for parsing a hash-name reference</dfn> to an element of type <var>type</var>,
-  given a context node <var>scope</var>, are as follows:
+  given a context node <var ignore=''>scope</var>, are as follows:
 
   1. If the string being parsed does not contain a U+0023 NUMBER SIGN character, or if the first
       such character in the string is the last character in the string, then return null and abort
@@ -3896,7 +3896,7 @@ interface NoncedElement {
    <li>
     <p>If [=response/CSP list=] <a>contains a header-delivered Content Security Policy</a>, and
     <var>element</var> has a <a>nonce</a> content attribute
-    <var>attr</var> whose value is not the empty string, then:</p>
+    <var ignore=''>attr</var> whose value is not the empty string, then:</p>
 
     <ol>
      <li><p><a>Set an attribute value</a> for

sections/semantics-scriptings.include

@@ -494,7 +494,7 @@
        internal slot's value.
   16. If the <{script}> element has an <{script/integrity}> attribute, then let <var>integrity metadata</var> be that attribute's value.
       Otherwise, let <var>integrity metadata</var> be the empty string.
-  17. Let <var>parser metadata</var> be "<code>parser-inserted</code>" if the <{script}> element has been flagged
+  17. Let <var ignore=''>parser metadata</var> be "<code>parser-inserted</code>" if the <{script}> element has been flagged
        as "[=parser-inserted=]", and "`not parser-inserted`" otherwise.
   18. Let options be a set of <a>script fetch options</a> whose <a>cryptographic nonce metadata</a> is 
        cryptographic nonce, <a>integrity metadata</a> is integrity metadata, 
@@ -517,7 +517,7 @@
            <dl class="switch">
              <dt>`"classic"`</dt>
              <dd><a>Fetch a classic script</a> given <var>url</var>, <var>settings object</var>,
-             <var>options</var>, <var>classic script CORS setting</var>, and
+             <var>options</var>, <var ignore=''>classic script CORS setting</var>, and
              <var>encoding</var>.
 
              <dt><code>"module"</code></dt>

sections/webappapis.include

@@ -321,7 +321,7 @@ APIs for Web APplications. This is a bit of a grab-bag
   11. Asynchronously complete this algorithm with <var>script</var>.
 
   To <dfn>fetch a classic worker script</dfn> given a <var>url</var>, a <var>fetch client settings object</var>,
-  a <var>destination</var>, and a <var>script settings object</var>, run these steps. The algorithm will
+  a <var>destination</var>, and a <var ignore=''>script settings object</var>, run these steps. The algorithm will
   asynchronously complete with either null (on failure) or a new <a>classic script</a>
   (on success).
 
@@ -360,7 +360,7 @@ APIs for Web APplications. This is a bit of a grab-bag
   2. If <var>module map settings object</var> is not given, let it be <var>fetch client settings
       object</var>.
   3. <a>Fetch a single module script</a> given <var>url</var>, <var>credentials mode</var>,
-      <var>cryptographic nonce</var>, <var>parser state</var>, <var>destination</var>, and
+      <var>cryptographic nonce</var>, <var ignore=''>parser state</var>, <var>destination</var>, and
       <var>module map settings object</var>. If the caller of this algorithm specified custom
       <a>set up the request</a> or <a>process the response</a> steps, pass those along while
       <a>fetching a single module script</a>.
@@ -418,7 +418,7 @@ APIs for Web APplications. This is a bit of a grab-bag
 
   To <dfn lt="fetching a single module script|fetch a single module script">fetch a single module script</dfn>,
   given a <var>url</var>, a <var>fetch client settings object</var>, a <var>destination</var>, some <var>options</var>,
-  a <var>module map settings object</var>, a <var>referrer</var>, and a <var>top-level module fetch</var> flag, run these steps.
+  a <var>module map settings object</var>, a <var>referrer</var>, and a <var ignore=''>top-level module fetch</var> flag, run these steps.
   The algorithm will asynchronously complete with either null (on failure) or a <a>module script</a> (on success).
 
   1. Let <var>module map</var> be <var>settings object</var>'s <a>module map</a>.