Also have you installed the following? "chromium-codecs-ffmpeg-extra and chromium-codecs-ffmpeg-nonfree"?

On Sun, Oct 18, 2020 at 4:40 PM Stephen Partington <cryptworks@gmail.com> wrote:
Take a gander at this? 
     chromium://serviceworker-internals/

On Sun, Oct 18, 2020 at 4:24 PM Jim via PLUG-discuss <plug-discuss@lists.phxlinux.org> wrote:
I'm trying to get Chromium to play video from sites that use H264
video.  I have Kubuntu 20 on this machine.  I looked online for help,
but anything I found didn't work.
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--
A mouse trap, placed on top of your alarm clock, will prevent you from rolling over and going back to sleep after you hit the snooze button.

Stephen



--
A mouse trap, placed on top of your alarm clock, will prevent you from rolling over and going back to sleep after you hit the snooze button.

Stephen