Short answer

Usually Chrome needs a JavaScript HLS player such as hls.js for M3U8 playback. Safari often has native HLS support. Both still depend on CORS, codecs, segment access and authorization.

What to check

  • Confirm that the stream is public or authorized for testing.
  • Use the Checker to separate access problems from playlist structure.
  • Do not treat a diagnostic result as permission to copy, bypass or redistribute media.

Next step

If the answer points to access, fix the origin policy or authorization first. If access works, continue with playback, segment and codec checks.