[BUG] Video fails to play via URL when serving from a slow static server (1210792)

Reproduced with Unity 2019.3.0f4.

When a video is served from a slow static server, video playback (url mode) fails with the following warnings (from the browser console):
"Error: WebGL warning: drawElements: TEXTURE_2D at unit 0 is incomplete: The dimensions of `level_base` are not all positive."
"Error: WebGL warning: texSubImage2D: Offset+size must be <= the size of the existing specified image."



For the test I've used a free Netlify static hosting, which limits the bandwidth for static files: https://elringus.me/static/chromevideoissue/

Notice, that it's not an issue with the hosting config, the video itself is accessible just fine (though it takes time to load): https://elringus.me/static/ChromeVideoIssue/StreamingAssets/Video.mp4

The video plays fine when run on a hosting without the bandwidth limitations.

I've sent a bug report; case number is 1210792.

 

Possibly related with: https://issuetracker.unity3d.com/is...webgl-builds-when-the-video-is-loaded-via-url

Though, in my case the video can still be played when running the builds on a local host; I've also tried hosting on GitHub and it worked fine in Firefox and Edge, but not in Chrome (same warnings in the console).

 

Having this bug also... can't believe it.

 

Having this issue too, in Unity 2019.3.1, but in my case, don't seems to be related to hosting bandwith limits, as I am using AWS S3 + Cloudfront as CDN (so, no limits on host side)

 

Tested with 2019.3.2 still here. Downgraded project to 2019.2.21 : no problem.