Bug 1706451 [wpt PR 28604] - Handle exceptions thrown at step 12 of HTMLConstructor [1], a=testonly

Automatic update from web-platform-tests Handle exceptions thrown at step 12 of HTMLConstructor [1] [1] https://html.spec.whatwg.org/multipage/dom.html#html-element-constructors Bug: 1197894 Change-Id: I2cc34e8b747ddc9325f03b3830e54a52651bf242 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2837484 Auto-Submit: Mason Freed <masonf@chromium.org> Reviewed-by: Yuki Shiino <yukishiino@chromium.org> Reviewed-by: Joey Arhar <jarhar@chromium.org> Commit-Queue: Mason Freed <masonf@chromium.org> Cr-Commit-Position: refs/heads/master@{#875303} -- wpt-commits: 0eaf38744197756c848df29403243b5f8e0c6e53 wpt-pr: 28604
2021-04-24 09:18:06 +00:00 · 2021-04-24 09:18:06 +00:00 · dbb195b40b
--- a/testing/web-platform/tests/custom-elements/prevent-extensions-crash.html
+++ b/testing/web-platform/tests/custom-elements/prevent-extensions-crash.html
@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>Check for crash at step #12 of HTML Constructors</title>
+<meta name='author' href='mailto:masonf@chromium.org'>
+<link rel='help' href='https://html.spec.whatwg.org/multipage/dom.html#html-element-constructors'>
+<link rel='help' href='https://crbug.com/1197894'>
+
+<uh-oh></uh-oh>
+
+<script type="module">
+  Reflect.preventExtensions(document.querySelector('uh-oh'));
+  customElements.define('uh-oh', class extends HTMLElement {});
+</script>
+
+This test passes if it does not crash.