Trying to create gmail credentials but getting 431 error

Describe the problem/error/question

I’m trying to create a gmail oauth2 credential following the guide but after I filled everything in the form and click the “sign in” button, I get a 431 error. Not sure where to go from here.

I’m using v0.236.0

What is the error message (if any)?

I’m getting a 431 error after clicking the “sign in” button.

Share the output returned by the last node

Information on your n8n setup

  • v0.236.0
  • sqlite
  • own instance
  • running via docker
  • Ubuntu 22.04.3

Hi @mreyes :wave: Welcome to the community :tada:

Can you let us know at which URL exactly where you’re seeing this / which system is throwing the error? This doesn’t sound like it’s an error with n8n, but possibly with a reverse proxy :thinking:



This toast notification pops up right after i click the google sign in button.

Additional info:
n8n is behind traefik and authelia but authelia is set to bypass auth for n8n

Looks you were right. I removed it from behind traefik + authelia and just used it locally and everything is working fine.



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