I mean, you are just completely wrong. It does not rewrite the request. It does not change headers. There is an API that allows the extension to set a proxy ser

I mean, you are just completely wrong. It does not rewrite the request. It does not change headers. There is an API that allows the extension to set a proxy server destination: https://developer.chrome.com/docs/extensions/reference/proxy/ https://developer.chrome.com/docs/extensions/reference/proxy... And that API does not change the request, either. That is not how proxying works.