xdebug
Xdebug for vscode.dev
Research the idea of getting vscode-php-debug to work in the web version of vscode.
Docs provided @isidorn https://code.visualstudio.com/api/extension-guides/web-extensions
Since running PHP in the browser (start current script) isn't a real option and creating a TCP Listener socket is also out of the question (security sandbox) maybe websocket support in Xdebug.cloud #703 could be something to consider.
Yes, I am not sure if this would be possible at all. However sounds like an interesting investigation.
Is it at all possible to have a debugger extension in vscode.dev? The docs say
If an extension wants to provide a debugger or terminal that also work in the web extension host, a browser entry point needs to be defined
So I guess, technically possible :)
Yes, it is possible. One example is mock-debug - which is a fake debugger, but still shows that it is technically possible.