HTTPS is preventing jquery to load from google api because the link is HTTP and your "jquery.min.js" fallback doesn't work either, redirecting to a 404 page.
Mixed Content: The page at 'https://isotope.metafizzy.co/v2/methods.html' was loaded over HTTPS, but requested an insecure script 'http://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js'. This request has been blocked; the content must be served over HTTPS. jquery.min.js Failed to load resource: the server responded with a status of 404 ()
URL : https://isotope.metafizzy.co/v2/methods.html
Problem in the docs
HTTPS is preventing jquery to load from google api because the link is HTTP and your "jquery.min.js" fallback doesn't work either, redirecting to a 404 page.
Mixed Content: The page at 'https://isotope.metafizzy.co/v2/methods.html' was loaded over HTTPS, but requested an insecure script 'http://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js'. This request has been blocked; the content must be served over HTTPS. jquery.min.js Failed to load resource: the server responded with a status of 404 ()