AlexVestin

Are you setting the COOP/COEP headers on the base document (the html file) too?

It depends on how you serve your files. Just google "(your server, e.g. express) how to set headers" and set the required headers from here https://web.dev/coop-coep/

Do you have FLAC in the `ffmpeg -demuxers` output?

~~I think it's `--enable-parser=flac` ~~ ~~(if you were using `--enable-demuxer=flac`)~~ *Might be*, just glanced at the [ffmpeg config file](https://github.com/FFmpeg/FFmpeg/blob/master/configure#L3298)

would compiling with a higher `TOTAL_MEMORY` https://github.com/Kagami/ffmpeg.js/blob/master/Makefile#L227 help here?

Hey, sorry for commenting late but I didn't get a notification for this. > I can make a PR later if you want :) Sure! that would be great.