*** This bug has been marked as a duplicate of bug 176225 ***

Ahmad, Darin seems to have been the "recent" (2015) editor of this piece of code https://searchfox.org/wubkat/rev/64453e226bbd56f49b248f0f8816a72e5547e456/Source/WebCore/html/track/WebVTTTokenizer.cpp#120 Latest improvements about HTML Tokenization was done in Bug 140166 The spec is not obviously clear about it. Here's an example which shows yes HTML entities are possible. https://www.w3.org/TR/webvtt1/#example-4a66a3ef > To change that line to left-to-right base direction, start the line with an U+200E LEFT-TO-RIGHT MARK character (it can be escaped as "‎"). but it's an example. The test in http://wpt.live/webvtt/parsing/cue-text-parsing/tests/entities.html https://wpt.fyi/results/webvtt/parsing/cue-text-parsing/tests/entities.html?label=master&label=experimental&aligned it also shows Firefox failing the same test. Let's find out the commit for the test, maybe there is more information. https://github.com/web-platform-tests/wpt/commit/3c01711d2b0dffe60bea034340a83a40dbf17cc1 ha yes it's in the spec. I was looking for HTML entities instead of HTML Character reference. > HTML character reference in data state > Attempt to consume an HTML character reference, with no additional allowed character. > > If nothing is returned, append a U+0026 AMPERSAND character (&) to result. > > Otherwise, append the data of the character tokens that were returned to result. > > Then, in any case, set tokenizer state to the WebVTT data state, and jump to the step labeled next.