fix: Safari playback stall with overrideNative and experimentalUseMMS

[Demenus]

Description

Safari playback does not start when using overrideNative together with experimentalUseMMS.

This appears to be caused by setting the segment metadata track mode to hidden, which can stall playback in Safari when using Managed Media Source.

Disabling the metadata track in this specific scenario prevents Safari from processing it and allows playback to start normally.

Fixes #1600

This behavior seems specific to Safari when using MMS. Other browsers (Chrome, Firefox) do not appear to be affected by this issue.

Specific Changes proposed

• Detect Safari/iOS when using overrideNative + experimentalUseMMS
• Set segmentMetadataTrack_.mode = 'disabled' instead of hidden in this specific scenario
• Keep the existing behavior (hidden) for all other browsers and configurations

Requirements Checklist

• Feature implemented / Bug fixed
• If necessary, more likely in a feature request than a bug fix
  • Unit Tests updated or fixed
  • Docs/guides updated
  • Example created (starter template on JSBin)
• Reviewed by Two Core Contributors

[mister-ben]

Suggested change

	options.overrideNative &&
	options.experimentalUseMMS &&

I think these can be removed. If this code is reached, it's not native playback. And without the MMS check this seems to fix videojs/video.js#9117 too.

[Demenus]

You are right — at that point in the code we are no longer using native playback.

I have removed those flags from the condition.

Thank you for the fast review 👍🏻

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 84.01%. Comparing base (6da45b0) to head (84a44ef).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1601   +/-   ##
=======================================
  Coverage   84.00%   84.01%           
=======================================
  Files          44       44           
  Lines       11713    11716    +3     
  Branches     2625     2627    +2     
=======================================
+ Hits         9840     9843    +3     
  Misses       1873     1873           

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[hannseman]

Is there any way for me to help push this forward? Would love to see this issue fixed.

[mister-ben]

I can no longer reproduce the issue in #1600 with the example there. I've updated to Mac OS/Safari 26.4 so perhaps there's been a change in Safari. @Demenus do you experience the same?

Unfortunately it was a false positive that this would also resolve videojs/video.js#9117. It was only appearing to do so as the version of video.js in this repo's package-lock.json is a bit outdated.