Odd Script File Trying to be Loaded

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…

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<script src='http://[parent-domain]/?dm=[random-string]&amp;action=load&amp;blogid=1&amp;siteid=1&amp;t=401255033&amp;back=[this-sites-domain' type='text/javascript'></script>

I was wondering if anybody knows what this is all about?

Thanks.

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2 comments

  1. 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:

    add_action('wp_loaded', 'remove_unwanted_js');
    function remove_unwanted_js(){
    
        remove_action( 'wp_head', 'remote_login_js_loader' );
    
    }