Rails OmniAuth Facebook 'Redirect URL must be absolute'

Question

I am trying to set up omniauth to allow users to sign in to my website with facebook. I get the following error when i click on the log in button after following the Github Tutorial

In my devise.rb file i have:

  config.omniauth :facebook, "*****", "*****",
            callback_url: "CALLBACK_URL"

I am using ngrok so i am able to test with a url that isnt localhost. The url generated is http://46cbf60d.ngrok.io

In the facebook dashboard settings i have:

And in the facebook dashboard 'products/facebook login' i have

Does anybody know how to fix this error?

give the https:// version of the url from the same ngrok server. And also u need to up the ngrok .. :) — Arup Rakshit, Aug 05 '16 at 13:37

score 2 · Accepted Answer · answered Aug 08 '16 at 14:42

2

In the devise.rb file, 'CALLBACK_URL' needs to be replaced with the callback url such as http://demo-app.herokuapp.com/users/auth/facebook/callback

answered Aug 08 '16 at 14:42

rohaldb

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5
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it's also worth pointing out that you will see the same error if you pass a path, instead of a full url – stephenmurdoch Mar 08 '17 at 09:11

Rails OmniAuth Facebook 'Redirect URL must be absolute'

1 Answers1