Ravenstine Ravenstine - 1 year ago 359
Javascript Question

Facebook App: localhost no longer works as app domain

I've been writing a game for Facebook using Rails and jQuery. Since I started using the Facebook Javascript SDK, using localhost as an app domain seemed to work just fine. I was able to test my game both locally and on Heroku.

In the past day, it seems that Facebook has made a big update to their developer UI. Now if I add localhost as an app domain, it gives me the following error:

This must be derived from Canvas URL, Secure Canvas URL, Site URL, Mobile Site URL, Page Tab URL or Secure Page Tab URL. Check and correct the following domains: localhost

My game also now doesn't work locally and I get an error when the Javascript SDK logs in the user:

API Error Code: 191 API Error Description: The specified URL is not
owned by the application Error Message: Invalid redirect_uri: Given
URL is not allowed by the Application configuration.

This doesn't happen when I deploy my game, since herokuapp.com is considered a valid app domain.

How am I supposed to develop and test my game if I can no longer use localhost or

Answer Source

The protocol seems to keep changing, and the accepted answer didn't work for me today. In case it helps other searchers, this is what did work for me:

  • All changes were made on the Settings page under the Basic tab

1.) In the center under the first box of options, click "+ Add Platform" and choose "Website" (or whatever is appropriate for your app.)

2.) In the box that comes up for the website you just added: Site URL: http://localhost:3000/

3.) In the box above that (Settings => Basic): App Domain: localhost

4.) At the bottom right - click "Save Changes"

5.) Make sure you have the app ID copied and pasted correctly into your code. (The ID is in the first box on that page if you need it again.)