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Editorial Team
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Asked: 2026-05-25T12:59:08+00:00

yep, getting the 191 error. I’ve researched and found this question to be helpful:

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yep, getting the 191 error.
I’ve researched and found this question to be helpful:
Facebook API error 191

My URL looks like:

https://www.facebook.com/dialog/oauth?client_id=&redirect_uri=http%3a%2f%2flocalhost%2fFb.201109Birthday%2fOAuth2.aspx

However, I get an error:

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.

I’ve read everywhere that the urls must match up to what’s listed in the application’s setting page. I’ve got

I’ve also tried local.facebook-apps.com (replaced “localhost” everywhere above with “local.facebook-apps.com”) with a hosts file entry to point to 127.0.0.1. But all of these scenarios still give the 191.

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1 Answer

  1. Editorial Team

    Remove the Birthday.aspx from the Canvas URLs.

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