Gmail is having authentication problems. Some features may not work

Question

I am writing a Chrome extension that sends voicemails from Gmail Web App with Gmail API.

I keep getting this red message somewhere around the time that I try to authenticate a user.

My questions:

• Why is this happening?
• Can I somehow download Google Javascript Client library in a way that it doesn't create a global gapi variable?

PS. I already tried reading the documentation. Also, the extension works fine, and Gmail works fine, the red message is the only problem.

Answer 1

For the people who are directed here via google search (which I used to), check your extensions. After I research so many hours, I see that one of my extensions is modifying my header, disabling it resolved the problem.