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be56df8d4f
When a CSS animation keyframe uses var() referencing a nonexistent or invalid custom property, variable substitution produces a guaranteed-invalid value. The animation keyframe processing code did not handle this case, allowing the value to reach compute_opacity() (and similar functions) which would hit VERIFY_NOT_REACHED(). Fix this by skipping guaranteed-invalid values in compute_keyframe_values, matching how the regular cascading code treats them. This fixes a crash on chess.com.
14 lines
371 B
HTML
14 lines
371 B
HTML
<!DOCTYPE html>
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<html>
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<div id="foo"></div>
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<script src="../include.js"></script>
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<script>
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test(() => {
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const anim = foo.animate([{ opacity: "var(--nonexistent)" }, { opacity: "1" }], 1000);
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anim.pause();
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anim.currentTime = 500;
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println(getComputedStyle(foo).opacity);
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});
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</script>
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</html>
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