[Plugin: WordPress MU Domain Mapping] Suggestion: better compatibility with FORCE_SSL_ADMIN

I’ve had some issues with domain mapping and FORCE_SSL_ADMIN. Here’s the situation:

(“Remote Login” and “Redirect administration pages to site’s original domain” are enabled.)

I have a site mapped to mysite.com, and its original url is mysite.mynetwork.com. So far so good. I’ve set FORCE_SSL_ADMIN to true. The problem is that when I’m on mysite.com and I click an administration link (from within the admin bar, or my theme), the url is https://mysite.com/wp-admin/... which isn’t configured on my server (that’s why I am redirecting admin pages).

So here’s my solution:

[Code moderated as per the Forum Rules. Please use the pastebin]

Basically, rather than redirecting to the original url on admin_init it ensures that all admin links generated by WordPress already use the correct URL. I haven’t tested it extensively yet, but it seems like it’s doing the job for me.

http://wordpress.org/extend/plugins/wordpress-mu-domain-mapping/