vBulletin Facebook App Troubleshooting - updated 22nd Dec '11

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  • Trevor Hannant
    vBulletin Support
    • Aug 2002
    • 24325
    • 5.7.X

    vBulletin Facebook App Troubleshooting - updated 22nd Dec '11

    As the Facebook App uses the same API functionality that the Mobile Apps use, the following link is valid for troubleshooting any issues with this:

    Basic API Troubleshooting Guide

    Please ensure you check these items as part of your troubleshooting before posting in the forums or raising a Ticket.

    Thanks!
    Vote for:

    - Admin Settable Paid Subscription Reminder Timeframe (vB6)
    - Add Admin ability to auto-subscribe users to specific channel(s) (vB6)
  • Trevor Hannant
    vBulletin Support
    • Aug 2002
    • 24325
    • 5.7.X

    #2
    Unable to login to your forum via the FB App:

    Make sure you've installed the '/product-vbfbfriends.xml' product and configured the options here:

    AdminCP > Settings > Options > Facebook Application Options



    Blank page when trying to access your App:

    This generally occurs because of an incorrect URL. Open the Facebook App config.php file and check that the following settings are using https:// and not http://

    - FACEBOOK_CANVAS_URL
    - FACEBOOK_APP_SITEURL

    Also ensure that you're using the correct URLs here and that they have a trailing slash:

    FACEBOOK_CANVAS_URL = the app location on Facebook itself - https://apps.facebook.com/your-app-name/
    FACEBOOK_APP_SITEURL = the location of the facebook files on your server - https://www.yourdomain.com/path/to/fb-app/files/
    Last edited by Trevor Hannant; Thu 22 Dec '11, 7:17am.
    Vote for:

    - Admin Settable Paid Subscription Reminder Timeframe (vB6)
    - Add Admin ability to auto-subscribe users to specific channel(s) (vB6)

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    • Lynne
      Former vBulletin Support
      • Oct 2004
      • 26255

      #3
      If, when trying to access your facebook app, you get the error:
      Error
      Error while loading page from YourSite.com
      Empty response received.
      Make sure your Canvas FBML/iframe is set to iframe, not FBML. This option does not show up for everybody! But, if it is there, it is under the "Advanced Settings" in two places:

      * Under "Migrations" look for "iframe Page Tab:" and make sure it is set to Enabled (I believe default is Disabled)
      * Under "Canvas Settings", make sure to select iframe instead of FBML.
      Last edited by Lynne; Mon 5 Mar '12, 9:40am.

      Please don't PM or VM me for support - I only help out in the threads.
      vBulletin Manual & vBulletin 4.0 Code Documentation (API)
      Want help modifying your vbulletin forum? Head on over to vbulletin.org
      If I post CSS and you don't know where it goes, throw it into the additional.css template.

      W3Schools <- awesome site for html/css help

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