Aliaksandr Kalenik 09d0278561 LibWeb/CSS: Don't track @font-face rules as critical subresources ...

CSSFontFaceRule inherited from CSSStyleSheet::Subresource, which made
each face a critical subresource of its parent stylesheet. New
subresources start in the Unloaded state, and the stylesheet's
loading_state() treats Unloaded as Loading.

When a @font-face declares a unicode-range and no codepoint in that
range is ever rendered, FontComputer only registers the face for
matching and never calls FontFace::load() on it. The face stays
Unloaded, so the parent stylesheet stays stuck reporting Loading,
which keeps HTMLLinkElement's load-event delayer alive and prevents
the document load event from firing. HTMLParserEndState then times
out in phase 2 (WaitingForLoadEventDelay) after 15 seconds.

Decouple @font-face from the stylesheet's loading state. Font loading
remains tracked by FontFaceSet, which is the correct place.

2026-04-28 00:15:30 +02:00

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