Hello,
I'm trying to get the Facebook login to play nicely with W3 Total Cache. When it's activated and attempt to log in, it returns me to my homepage. When I go back into the post where I was trying to log in, it says "Facebook authentication failed (OAuth state
does not exist)." below the Facebook button.
When I disable W3TC, I can login correctly. I've tried playing with the minification settings inside W3TC, but I cannot pin it down. Advice?
I'm sorry but we can't suggest any solution in such cases. This kind of plugins may minify/compress/optimize or cache JS files of wpDiscuz and cause lots of issues. I'd recommend either use other cache plugins or use other Social Login solutions instead of wpDiscuz built-in solution. Something like Super Socializer plugin or so.