Oauth2 redirect_uri_mismatch

Question

I've setup an environment in Cloud9 to create a website in Rails. I'm currently trying to enable login via Gmail, using the google oauth2 gem, but i ran into this problem and no matter where i look, every solution i've found does not seem to work.

Here is the error:

(https://i.stack.imgur.com/XAiWL.png)

And here is my google development urls:

(https://i.stack.imgur.com/xmg8j.png)

(Sorry, seems like i can't upload images directly to the post yet)

Have you tried to add a link from your redirect_uri to authorized domains? — Zalom, Oct 08 '18 at 21:15

Zalom · Answer 1 · 2018-10-08T21:29:36.973

0

I think you are having this issue because Google's OAuth does not support wildcard subdomain matching and your app is basically a subdomain on Cloud9. Check this SO post.

I found a post with similar issues on Cloud9 forums

I googled with "OAuth c9.io".

edited Oct 08 '18 at 21:29

answered Oct 08 '18 at 21:22

Zalom

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I've read these before, but it seems the Google Developer website changed, and now not even registering subdomains is possible. – SrKurtz Oct 08 '18 at 21:54

score 0 · Answer 2 · answered Oct 09 '18 at 01:42

Have you added the authorized redirect URIs?. It´s in the Credentials tab. You must edit your OAuth 2.0 client IDs and set the URIs there.

Steps:

Go to https://console.developers.google.com/apis/dashboard
Select the project
Click on Credentials link on the left menu
Edit the OAuth 2.0 client IDs clicking the pencil next to it
Add your Authorized redirect URIs (https://domain/users/auth/google/callback or something similar)

Oauth2 redirect_uri_mismatch

2 Answers2