CORS errors in link to playground on Chrome

[ansermino]

It seems that CORS is preventing the playground from fetching the spec on Github.

Note: This is likely behaviour specific to Chrome-based browsers.

[aatifsyed]

Repro'd for me on Chrome 126.0.6478.127, but NOT Edge 126.0.2592.87.
I suspect the playground needs to set the relevant header, or load the spec in a different way