Auto rewrite urls to their CORS counterpart’s

[koenvo]

Some common used urls like ‘github.com/…?raw=true’ don’t have CORS headers set. This will fail the request.

Luckily those urls can be rewritten to urls with CORS headers enabled. The ‘raw.githubusercontent.com’ has those headers enabled.

Three things need to be implemented:

1. Generic way of rewriting urls
2. User friendly api to enable this
3. Rewriter for github (regex can be found here: simonw/datasette-lite@e7ccaf6 )

More context: https://mobile.twitter.com/simonw/status/1569835954365669376

[rth]

Righ but this is only for GitHub essentially. For a lot of other resources there are equivalent urls with CORS headers sets. Unless you use a CORS proxy but that has privacy issues.

[koenvo]

Agree on the CORS proxy issues.

I'm also only aware of GitHub urls that can be replaced. Could you provide an example of other resources with CORS headers set?

[rth]

Sorry, I mistyped, I meant "there are no equivalent URLs" :)