MyBB Community Forums

I'm trying to get the Google+ login plugin working on my forum site and just can't seem to get it to work. I've read just about every related thread here on this forum and here's what I'm seeing happening.

I'm an experienced web admin, maintain scores of sites, administer a few forums as well as asset management systems and have setup google login on other sites using other tools and plugins.

My redirect URLs are:

http://mydomain.com/mygpconnect.php?action=login
http://mydomain.com/usercp.php?action=gplink
http://mydomain.com/usercp.php?action=mygpconnect

These differ from the installation instructions based on the support thread here:
https://community.mybb.com/thread-189375...ogle+login

The redirect URLs on the installation instructions list:
http://www.example.com/mygpconnect.php?action=do_login
http://www.example.com/usercp.php?action=do_gplink
http://www.example.com/usercp.php?action=mygpconnect

I can't get either of these to work however and each time I receive the dreaded Google Error 400 redirect mismatch. I've tried adding www to the redirects but continue to get the same error. So I'm at a loss as to why it's not working. Any suggestions appreciated.

Chris Blair