Nginx proxy with Google OAuth 2.0
google-oauth, meteor, nginx, proxy
Solution
You should rewrite the `Location` headers that your backend sends to Nginx described in http://wiki.nginx.org/HttpProxyModule#proxy_redirect, so:
proxy_redirect http://localhost:3000/_oauth/google http://sub.example.com/_oauth/google;
the other option, that would work for popup-style login as well is to set the `ROOT_URL` environment variable for Meteor at startup as follows:
ROOT_URL="http://sub.example.com" PORT=3000 node main.js
Problem
I have an Ubuntu 14.04 server and I have a meteor application that runs at `localhost:3000` on this server. The public FQDN of my server is `sub.example.com`. The meteor application uses Google OAuth 2.0, I have the following configured in the Google API Console: ``` URI REDIRECTION http://sub.example.com/_oauth/google http://sub.example.com/_oauth/google?close ORIGINES JAVASCRIPT http://sub.example.com ``` My Nginx config file looks like this: ``` server { listen 80 default_server; server_name sub.example.com www.sub.example.com; location / { proxy_set_header HOST $host; proxy_set_header X-Forwarded-Proto $scheme; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_pass http://localhost:3000; } } ``` The proxy works and I can access my meteor application when I go to `sub.example.com`. But when in this application I try to use Google OAuth 2.0, a pop up opens as it should and I get : ``` Error: redirect_uri_mismatch The redirect URI in the request: http://localhost:3000/_oauth/google?close did not match a registered redirect URI. ``` I have played with the header in the nginx config file with no luck. I'm obviously missing something.