Deal with <frame> edge case in the code from bug 1891335.

Apparently we might not create a subdoc frame for <frame> unless it's inside <frameset>. Let's treat it as fully hidden. Differential Revision: https://phabricator.services.mozilla.com/D221943 bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=1917361 gecko-commit: 36af09c3c6fa2111176acc433edc074dda75209d gecko-reviewers: smaug
web-platform-tests · Sep 13, 2024 · cc35f23 · cc35f23
1 parent c49e7dd
commit cc35f23
Showing 1 changed file with 11 additions and 0 deletions.
diff --git a/...dering/non-replaced-elements/the-frameset-and-frame-elements/frame-no-frameset-crash.html b/...dering/non-replaced-elements/the-frameset-and-frame-elements/frame-no-frameset-crash.html
@@ -0,0 +1,11 @@
+<!doctype html>
+<link rel=help href="https://bugzilla.mozilla.org/show_bug.cgi?id=1917361">
+<script>
+document.addEventListener("DOMContentLoaded", () => {
+  const a = new Document()
+  const b = a.createElementNS("http://www.w3.org/1999/xhtml", "frame")
+  document.documentElement.appendChild(b)
+  try { b.contentWindow.history.replaceState(undefined, "𛵢") } catch (e) {}
+  b.contentWindow.history.go()
+})
+</script>