Source code
Revision control
Copy as Markdown
Other Tools
Test Info:
- This WPT test may be referenced by the following Test IDs:
- /custom-elements/duplicate-attr-constructor-crash.html - WPT Dashboard Interop Dashboard
<!doctype html>
<script>
customElements.define(
"x-test-button",
class extends HTMLButtonElement {
constructor() {
super();
this.setAttribute("data-test", "constructor");
}
},
{extends: "button"}
);
</script>
<button is="x-test-button" data-test="parser"></button>