Have you posted this in the respective comment sections of these games? Might help to get that fixed faster.
Viewing post in [SOLUTION] How to fix broken Unity WebGL client
The first 2 I did, then I thought it would be better to make a wide post. Now that I'm thinking about it, the way I filtered the submissions, I was more likely to get the ones that people couldn't play first. So maybe it would have been better to post individually.
I'll go back and post on the ones I've found, besides that, it could be beneficially to keep this here in case people stumble across it when looking for a solution :)