“No compatible source was found for this media” when trying to play Invidious videos on Icecat

Guix
1

When I try to open an invidious video link like this one.

I get to see this:

https://canada1.discourse-cdn.com/flex029/uploads/systemcrafters/optimized/2X/7/7d9dd9b264dd7b58002fe8c94e2c068620f308fc_2_1380x694.jpeg
https://canada1.discourse-cdn.com/flex029/uploads/systemcrafters/optimized/2X/7/7d9dd9b264dd7b58002fe8c94e2c068620f308fc_2_1380x694.jpeg1380×694 185 KB

Is this normal? Am I missing codecs for Icecat?

2

This is apparently normal as IceCat refuses non-free codecs like H.264 used by multiple invidious instances.