Any of those help JSFiddle in particular has always been difficult to get working with AngularJS. The HTML section isn't meant to take an entire HTML document. Instead, you need to configure the workspace to work with Angular following these steps: Under external resources, add the Angular script (remember to click the + icon) Under Fiddle Options change the body tag to include ng-app like so:
How do I import Polymer elements into code playgrounds like plunker (plnkr.co), jsBin and jsFiddle?
I hope this helps you . Since every other site other than jsbin is using the secure version of HTTP i.e. HTTPS, the request to get the contents from the source http://polygit.org/polymer+:master/components/ is blocked. So, use secure connection and it will work in every other site. You can check the console for more information.