blank page with facebook login

hallo there,

i have configured the plugin for the facebook login. After i click to login with facebook i have a blank page.
i attach images of the app to help if i miss something







thank you

and i have also the same problem with google.

but there i have more information. instead of blank page i have this message:

400. That’s an error.

Error: redirect_uri_mismatch

Application: myapplication.gr

You can email the developer of this application at: myemail@gmail.com

The redirect URI in the request: www.mysite.gr/components/com_comprofiler/plugin/user/plug_cbconnect/endpoint.php?hauth.done=Google did not match a registered redirect URI.


and for twitter i have a system message:

Authentication failed! Twitter returned an error. 401 Unauthorized.

Don't specify the callback url as the deauthorize callback url. The instructions to configure it as found below are still relevant to current release.

www.joomlapolis.com/support/tutorials/99-plugins/18364-cb-connect-how-to-configure-facebook

Please also see the below HybridAuth userguide for configuring Facebook.

hybridauth.sourceforge.net/userguide/IDProvider_info_Facebook.html

The error is telling you the URL you're connecting from does not match the website URL in your application. Twitter is probably the same issue.

hallo kyle,

i have already read these two guides and i really have double checked all of this. I cannot figure out what i am missing..

If you configure your Facebook application with a URL without "www" then you try logging in from your site with "www" then you'll get that error for example. The domain matching is exact matching. If it doesn't 100% match then Facebook will reject it with that error. So you need to ensure you're trying to login from the exact domain you've specified for the Website platform.

hallo,

i have set for the field App Domains my site without the "www". i am sure that it needs it without the "www".

for the site url i have set the all path " www.mysite.com "

and i am trying login from www.mysite.com

still the same eroor