Playlist loading errors must return fatal after all levels and retries exhausted #5498 (Still persist)

[whatever1211]

What version of Hls.js are you using?

1.4.4

What browser (including version) are you using?

Chrome 114.0.5735.90

What OS (including version) are you using?

Windows 10

Test stream

https://vod-zlr2.tv360.vn/video1/2022/11/10/09/7062f3b1/7062f3b1-832c-4b04-b3d3-e5b8ef1ffb3a_m.m3u8?timestamp=1686284460&token=b1f4c65bfcbeadc4d0e441fe000a08f0

Configuration

Running on hls demo page https://hlsjs.video-dev.org/demo with default configure.

Additional player setup steps

No response

Checklist

• The issue observed is not already reported by searching on Github under https://github.com/video-dev/hls.js/issues
• The issue occurs in the stable client (latest release) on https://hlsjs.video-dev.org/demo and not just on my page
• The issue occurs in the latest client (main branch) on https://hlsjs-dev.video-dev.org/demo and not just on my page
• The stream has correct Access-Control-Allow-Origin headers (CORS)
• There are no network errors such as 404s in the browser console when trying to play the stream

Steps to reproduce

1. Running on hls demo page with default configure
   https://hlsjs.video-dev.org/demo/?src=https%3A%2F%2Fvod-zlr2.tv360.vn%2Fvideo1%2F2022%2F11%2F10%2F09%2F7062f3b1%2F7062f3b1-832c-4b04-b3d3-e5b8ef1ffb3a_m.m3u8%3Ftimestamp%3D1686284460%26token%3Db1f4c65bfcbeadc4d0e441fe000a08f0&demoConfig=eyJlbmFibGVTdHJlYW1pbmciOnRydWUsImF1dG9SZWNvdmVyRXJyb3IiOnRydWUsInN0b3BPblN0YWxsIjpmYWxzZSwiZHVtcGZNUDQiOmZhbHNlLCJsZXZlbENhcHBpbmciOi0xLCJsaW1pdE1ldHJpY3MiOi0xfQ==
   (Please info if the test link is expired, we will provide a new one)
2. After few seconds (5~10s).
3. Turn Network offline in Chrome Devtools.
4. Hls.js will try to retry until halt (No fatal error throw).
5. Turn Network online again.
6. Player stuck in spinning.

Expected behaviour

After number of level loader retries, should ended with fatal error.

hlsjs.video-dev.org-1685673654745.log

What actually happened?

End with no fatal error.

Console output

Check log file hlsjs.video-dev.org-1685673654745.log in Expected behaviour* field

Chrome media internals output

No response

[robwalch]

The logs end before the final retry of the last level. If you want a fatal error to occur sooner, adjust the playlist loading policy.

Are you sure that this was the last attempt by the player?

level-controller.ts:351 [log] > [level-controller]: Switching to level 0 from level 1
main.js:734 Error event: {type: 'networkError', details: 'levelLoadError', fatal: false, url: 'https://vod-zlr2.tv360.vn/video1/2022/11/10/09/7062f3b1/7062f3b1-832c-4b04-b3d3-e5b8ef1ffb3a_2_.m3u8', 

[robwalch]

I am able to reproduce. What I am seeing is that level 0 was already loaded, so the player successfully switches to level 0, as level 1 fails. Why fragment loading does not resume is the issue.

[robwalch]

Posted a fix scheduled for v1.5.0 with #5537.

v1.3.5 jumps straight down to 0 without fragment requests being interrupted, so it avoids this case which is probably still there, but less likely to occur. Let me know if a v1.4.5 patch would help as v1.5.0 won't land until later this summer.

[whatever1211]

Yes, a v1.4.5 patch would be a great help, as I was seeing this bug happens more than often.
I have tried your changes with #5537 and it has thrown a fatal: true fragLoadError for video and fatal: true levelLoadError for live successfully.