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According to the spec [1], the cue's end time might be negative and be smaller than its start time. In this case, when we reach the cue's start on the media time line, we should treat it as a `missing cue` (which won't be actually displayed, but will receive events) when we run the `TimeMarchesOn`. Therefore, we have to add this kind of cue into `otherCue` and let `TimeMarchesOn` handles it properly, to dispatch `enter` and `exit` event for it. [1] https://html.spec.whatwg.org/multipage/media.html#text-track-cue-end-time Differential Revision: https://phabricator.services.mozilla.com/D30242 --HG-- extra : moz-landing-system : lando |
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| browsers | ||
| cross-origin-opener | ||
| dom | ||
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| infrastructure | ||
| interaction/focus | ||
| obsolete/requirements-for-implementations/the-marquee-element-0 | ||
| rendering | ||
| semantics | ||
| syntax | ||
| user-activation | ||
| webappapis | ||