Checklist

• I added a descriptive title
• I searched for other issues and couldn't find a solution or duplication
• I already searched in Google and didn't find any good information or help

What happened?

For now it seems that every worker which doesn't have CORS headers properly configured, displays the following warning in the browser console:

Unable to use `window` or `document` -> https://docs.pyscript.net/latest/faq/#sharedarraybuffer

It's rather weird to see this warning when worker is configured with sync_main_only = true, because if someone configures a worker that way, they somewhat agree not to use window or document, and seeing this warning could make them think their configuration is incorrect, they've put sync_main_only = true in the wrong place, etc.

It seems to me, it would be nice to suppress this warning for workers configured with sync_main_only = true.

Maybe if sync_main_only = true, window and document could be set to NotSupported without even trying to initialize them via SharedArrayBuffer.

What browsers are you seeing the problem on? (if applicable)

Chrome

Console info

Additional Context

No response