[Webkit-unassigned] [Bug 184443] New: TextTrack not rendered in edge case with autoplay

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=184443

            Bug ID: 184443
           Summary: TextTrack not rendered in edge case with autoplay
           Product: WebKit
           Version: Safari 11
          Hardware: All
                OS: iOS 11
            Status: NEW
          Severity: Major
          Priority: P2
         Component: Media Elements
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: oren.me at gmail.com

Created attachment 337597

  --> https://bugs.webkit.org/attachment.cgi?id=337597&action=review

Simple test page that reproduces the issue

Summary:
TextTrack is not rendered even though it should

Steps to Reproduce:
play an HLS stream with captions, where caption is set as default or caption option is remembered from previous user selection
Immediately after page starts loading move to another tab or another application(not safari) and then after a while go back to the safari tab.
the video should be set with autoplay(and muted of course following latest changes) 

Expected Results:
Text track rendered and can be seen on top of video

Actual Results:
Text track can't be seen

Version/Build:
11.0 (12604.1.38.1.7)

Configuration:
added simple test page to show the issue with exact config, test stream taken from apple developer site

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.webkit.org/pipermail/webkit-unassigned/attachments/20180410/415e6b30/attachment-0002.html>