"Blocked loading mixed active content"

Using Chrome and Firefox, I got an issue with "Blocked loading mixed active content". You can bypass this browser behaviour following http://wiki.sln.suny.edu/display/SLNKB/Enabling+mixed+content+in+Google+Chrome but your code is always "wrong".

The url to JQuery refers to http whereas the demo url is an https. Remove the http and only keep //code.jquery.com/jquery-1.11.1.min.js in src.