When I try to GraaspIt the following Google sites url, it does not work: https://sites.google.com/site/camschema/home
I checked the Chrome debugger and I get this error msg:
[blocked] The page at https://sites.google.com/site/camschema/home ran insecure content from http://graasp.epfl.ch/javascripts/bookmarklet/graaspit0.2.js
It seems to be HTTPS related.