CORS Issue after latest Chrome 85 Update

Question

I am a very new user here so, apologies in advance if I break any rule. Here is the problem I am facing and need suggestions please.

I have a Chrome extension which w

Answer 1

Isn't that the effect of this spec change?

Changes to Cross-Origin Requests in Chrome Extension Content Scripts https://www.chromium.org/Home/chromium-security/extension-content-script-fetches