AddThis working with https

addthis on socialmedia under https didn't work.
Change the line 496 on socialmedia.widgets.inc from:
return '<script type="text/javascript" src="http://s7.addthis.com/js/250/addthis_widget.js#pubid=[?pubid=[socialmedia:sm-addthis_pubid]?]"></script>';

to:
return '<script type="text/javascript" src="//s7.addthis.com/js/250/addthis_widget.js#pubid=[?pubid=[socialmedia:sm-addthis_pubid]?]"></script>';

remove "http:" to make it working under https.