[WebVTT] Embedded Style Interoperability Issues 
https://bugs.webkit.org/show_bug.cgi?id=202860
Summary [WebVTT] Embedded Style Interoperability Issues
evliu
Reported 2019-10-11 12:09:24 PDT
There are several aspects of the WebKit implementation of inline WebVTT styles that do not conform to the spec: https://w3c.github.io/webvtt Some issues include the following: - CSS from one track applies to the entire shadow tree scope, including tracks sourced from a different VTT file. - @import rules are allowed. - The cascade order of the styles is incorrect. Test coverage exposing these inconsistencies was added to the Web Platform Tests under the path: webvtt/rendering/cues-with-video/processing-model/embedded_style_*
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Radar WebKit Bug Importer
Comment 1 2019-10-13 20:03:50 PDT
<rdar://problem/56236619>
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