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cbd01b8efc
The `HTMLFormControlsCollection` filter iterates all descendants of the
form's root, which may include non HTMLElement elements such as SVG
elements. The unchecked `as<FormAssociatedElement>` cast would crash on
these elements. Use `as_if` with a null check instead.
This fixes a regression introduced in 9af3e34875.
6 lines
117 B
HTML
6 lines
117 B
HTML
<!DOCTYPE html>
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<form id="f"><svg></svg></form>
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<script>
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document.getElementById("f").elements.length;
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</script>
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