Not a valid origin for the client from Google API Oauth

Question

I\'m receiving this error from Google API Oauth:

idpiframe_initialization_failed\", details: \"Not a valid origin for the client: http://127.0.0.…itel

Answer 1

I read on several places on the web people use to redo the creation of the credentials to get it to work.
So I did, I created a new credential for the same project and used my new user-id and it worked perfectly... Looks like the edition of the whitelist is a bit flacky...

Nb: I also used localhost instead of 127.0.0.1, IPs are not valid.