diff --git a/testing/web-platform/tests/compression/idlharness-shadowrealm.window.js b/testing/web-platform/tests/compression/idlharness-shadowrealm.window.js
new file mode 100644
index 0000000000000..2fdc807ee07e3
--- /dev/null
+++ b/testing/web-platform/tests/compression/idlharness-shadowrealm.window.js
@@ -0,0 +1,2 @@
+// META: script=/resources/idlharness-shadowrealm.js
+idl_test_shadowrealm(["compression"], ["streams"]);
diff --git a/testing/web-platform/tests/encoding/idlharness-shadowrealm.window.js b/testing/web-platform/tests/encoding/idlharness-shadowrealm.window.js
new file mode 100644
index 0000000000000..baf3efcbb027e
--- /dev/null
+++ b/testing/web-platform/tests/encoding/idlharness-shadowrealm.window.js
@@ -0,0 +1,2 @@
+// META: script=/resources/idlharness-shadowrealm.js
+idl_test_shadowrealm(["encoding"], ["streams"]);
diff --git a/testing/web-platform/tests/hr-time/idlharness-shadowrealm.window.js b/testing/web-platform/tests/hr-time/idlharness-shadowrealm.window.js
new file mode 100644
index 0000000000000..3209db5f41b72
--- /dev/null
+++ b/testing/web-platform/tests/hr-time/idlharness-shadowrealm.window.js
@@ -0,0 +1,2 @@
+// META: script=/resources/idlharness-shadowrealm.js
+idl_test_shadowrealm(["hr-time"], ["html", "dom"]);
diff --git a/testing/web-platform/tests/html/dom/idlharness-shadowrealm.window.js b/testing/web-platform/tests/html/dom/idlharness-shadowrealm.window.js
new file mode 100644
index 0000000000000..cb9449acb1bd0
--- /dev/null
+++ b/testing/web-platform/tests/html/dom/idlharness-shadowrealm.window.js
@@ -0,0 +1,2 @@
+// META: script=/resources/idlharness-shadowrealm.js
+idl_test_shadowrealm(["html"], ["wai-aria", "SVG", "cssom", "touch-events", "uievents", "dom", "xhr", "FileAPI", "mediacapture-streams"]);
diff --git a/testing/web-platform/tests/performance-timeline/idlharness-shadowrealm.window.js b/testing/web-platform/tests/performance-timeline/idlharness-shadowrealm.window.js
new file mode 100644
index 0000000000000..6caaa3306132b
--- /dev/null
+++ b/testing/web-platform/tests/performance-timeline/idlharness-shadowrealm.window.js
@@ -0,0 +1,2 @@
+// META: script=/resources/idlharness-shadowrealm.js
+idl_test_shadowrealm(["performance-timeline"], ["hr-time", "dom"]);
diff --git a/testing/web-platform/tests/streams/idlharness-shadowrealm.window.js b/testing/web-platform/tests/streams/idlharness-shadowrealm.window.js
new file mode 100644
index 0000000000000..099b2475ca7e8
--- /dev/null
+++ b/testing/web-platform/tests/streams/idlharness-shadowrealm.window.js
@@ -0,0 +1,2 @@
+// META: script=/resources/idlharness-shadowrealm.js
+idl_test_shadowrealm(["streams"], ["dom"]);
diff --git a/testing/web-platform/tests/url/idlharness-shadowrealm.window.js b/testing/web-platform/tests/url/idlharness-shadowrealm.window.js
new file mode 100644
index 0000000000000..2373f84e0e251
--- /dev/null
+++ b/testing/web-platform/tests/url/idlharness-shadowrealm.window.js
@@ -0,0 +1,2 @@
+// META: script=/resources/idlharness-shadowrealm.js
+idl_test_shadowrealm(["url"], []);
diff --git a/testing/web-platform/tests/user-timing/idlharness-shadowrealm.window.js b/testing/web-platform/tests/user-timing/idlharness-shadowrealm.window.js
new file mode 100644
index 0000000000000..340da96f749d4
--- /dev/null
+++ b/testing/web-platform/tests/user-timing/idlharness-shadowrealm.window.js
@@ -0,0 +1,2 @@
+// META: script=/resources/idlharness-shadowrealm.js
+idl_test_shadowrealm(["user-timing"], ["hr-time", "performance-timeline", "dom"]);