gecko-dev/testing/web-platform/tests/css/css-font-loading/fontfaceset-no-root-element.html
Rune Lillesveen 3159a75a03 Bug 1558505 [wpt PR 17268] - StyleResolverState may not be constructed with a null element., a=testonly
Automatic update from web-platform-tests
StyleResolverState may not be constructed with a null element.

It is dereferenced in ElementContext. Even documentElement() may
sometimes be null. With this CL, StyleResolverState and ElementContext
are always associated with a non-null Element.

In the case where we used to pass a Document for ElementContext, or
documentElement() directly, we will now pass documentElement() if not
null or avoid using StyleResolverState if it is null.

Bug: 971035
Change-Id: If7f34556f68aa8b55f157b2fbad5c0a331869e28
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1645292
Reviewed-by: Fernando Serboncini <fserb@chromium.org>
Reviewed-by: Anders Hartvoll Ruud <andruud@chromium.org>
Commit-Queue: Rune Lillesveen <futhark@chromium.org>
Cr-Commit-Position: refs/heads/master@{#668127}

--

wp5At-commits: b7595b59d1ba71e509310d7d8928415656f946f8
wpt-pr: 17268
2019-06-19 11:06:59 -07:00

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HTML

<!DOCTYPE html>
<title>CSS Font Loading test: Load Document FontFaceSet font without documentElement</title>
<link rel="help" href="https://drafts.csswg.org/css-font-loading/#font-face-set-load">
<link rel="help" href="https://crbug.com/971035">
<script>
test(() => {
document.documentElement.remove();
var face = new FontFace("Ahem", "url(/fonts/Ahem.ttf)");
document.fonts.add(face);
document.fonts.load("12px Ahem");
}, "Trigger font load after removing documentElement. Should not crash.");
</script>