Load is interrupted when subtitle fails to load

[thecuriousdev]

Have you read the FAQ and checked for duplicate open issues?
YES

What version of Shaka Player are you using?
2.5.4

Can you reproduce the issue with our latest release version?
YES

Can you reproduce the issue with the latest code from master?
YES

Are you using the demo app or your own custom app?
demo app

If custom app, can you reproduce the issue using our demo app?

What browser and OS are you using?
chrome 78, MacOS

For embedded devices (smart TVs, etc.), what model and firmware version are you using?

What are the manifest and license server URIs?

https://shaka-player-demo.appspot.com/demo/#audiolang=en-GB;textlang=en-GB;uilang=en-GB;asset=https://storage.googleapis.com/shaka-demo-assets/angel-one-hls/hls.m3u8;panel=SEARCH;build=uncompiled

What did you do?

Block the VTT URL from dev tools

What did you expect to happen?
Ideally, the playback should happen without the subtitle, no need to interrupt the playback altogether.

What actually happened?
The playback is failing with code 1002

[joeyparrish]

By default, any streaming failure will cause playback to fail. But for text, try this before you call load:

player.configure('streaming.ignoreTextStreamFailures', true);

In the demo app, this can be set by clicking the menu button in the top left, then expanding the "streaming" section of the config, then clicking the toggle labeled "ignore text stream failures".

Does this help?

[thecuriousdev]

Thanks @joeyparrish, that's helpful.

[thecuriousdev]

Hey, I tried changing the config demo, but its still throwing error. :(

[TheModMaker]

It looks like that configuration value is only used in StreamingEngine, but this error comes from the HLS parser when it tries to parse the start time. We should respect this configuration value in the HLS parser too. (this is also related to #1563 where we won't request text segments anymore)