[Webkit-unassigned] [Bug 255499] New: subtitles remain on Safari when playing live content

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=255499

            Bug ID: 255499
           Summary: subtitles remain on Safari when playing live content
           Product: WebKit
           Version: Safari 16
          Hardware: All
                OS: iOS 15
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Media
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: valletgood at naver.com

When playing HLS live content in Safari, the subtitles continue to be displayed and are not disappearing. When checking the activeCues through the Web API textTracks, it was found that some cues have an endTime of Infinity. When playing the same live content in Chrome, the issue does not occur. What is the reason for assigning the value of Infinity to endTime when processing the received startTime and endTime of the subtitles from the server in Safari?

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