Can't get same stalling error behavior in my app as in the demo player

[bes]

Hi! I have a HLS playlist that reliably stalls at about 6 seconds in. When I use the HLS.js demo player, it stalls for a short while, then prints "Buffer stalled error" and then the playback resumes reliably. Very good.

I think I use the same settings in my app ("hls.js": "^1.4.10",), but I can't get HLS.js to emit the error event? It just stalls forever!

const newHlsJs = new Hls({
    debug: true,
    enableWorker: true,
    lowLatencyMode: true,
    backBufferLength: 90,
});
newHlsJs.loadSource(hlsUrl);
newHlsJs.attachMedia(videoElement);
newHlsJs.on(Hls.Events.ERROR, function (event, data) {
       // Never called
       ...

Of course, there is a lot of other ceremony with listeners being subscribed to the video element and so on, that the demo player may not be doing in the same exact manner, but I am surprised that I can't get the error event.

If someone could help me understand why, I would be very grateful.

[bes]

My colleague @augustalfredsson found out why!

We have quite a special setup, where we use the video texture (in OpenGL), but we never attach the HTMLVideoElement to the DOM.

As soon as he attached the element to the DOM we got a stalled error after a few seconds!

I will write an issue instead!