In-browser player issues

Hi!
I’n trying to get the in browser working, but any media i try, including your video after i download it and run it off of google drive, dropbox, youtube or even local onto the player gives me an error. it gives me an error that either the file type is unsupported, but this shouldnt be the case as im using the save video you used, or that the file was failed to be retrieved, even when i run the file locally which should eliminate that issue.
Any help is appreciated!

This is caused by the cross-original error, and you can instruct Chrome to ignore this error: Run Chrome browser without CORS