This is an odd query I have and wondered if anybody can shed some light on it?
We have a number WordPress multi-site (formally Mu) install, but on nearly all the sites on multiple installs we are getting this script tag…
<script src='http://[parent-domain]/?dm=[random-string]&action=load&blogid=1&siteid=1&t=401255033&back=[this-sites-domain' type='text/javascript'></script>
I was wondering if anybody knows what this is all about?
Thanks.
In Network Admin > Settings > Domain Mapping > Domain Options, uncheck Remote Login. That should also remove it.
In my case, the “script” just retrieves the home page (html), causing a script error and a lot of wasted resources on every page view. Similar complaints in Does Domain Mapping plugin insert javascript on headers?.
It is added by the Domain Mapping Plugin and i believe (i might be wrong) it is used to log users into all MU sites with a single login.
to remove it: