Users getting "Invalid Redirect URL" when signing in...

Howdy. Just installed vBSEO on my forum and I'm getting emails from members (and can replicate it myself) stating they're getting "Invalid Redirect URL" when attempting to login. Tried searching the KB and forums, but apparently I just can't find anything on this. If I disable the plugin, this goes away. Can someone point me in the right direction?

Alright. I believe the users that get this are those omitting www from my domain.

If they enter http://www.mydomain.com, they can sign in without issue. If they enter http://mydomain.com, they get the "Invalid Redirect URL" when clicking the login button. Hopefully this helps as I'm not sure what needs to be added/changed to alleviate this error.

Disregard. I asked a fellow forum owner of mine and he got me squared away.

Great to hear the issue is resolved

Mert,

Looks like I was mistaken. The advice he gave me ended up causing all of my addon domains to be forward to my main site.

What is your .htaccess content ?

[How to] Setup www.yourdomain.com or yourdomain.com (www vs. non-www) - With .htaccess 301 redirects - vBulletin SEO Forums