Example project mixed content https errors

[oldmankit]

Loading https://davidjbradshaw.com/imagemap-resizer/example/ gives the following browser console errors:

Mixed Content: The page at 'https://davidjbradshaw.com/imagemap-resizer/example/' was loaded over HTTPS, but requested an insecure script 'http://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js'. This request has been blocked; the content must be served over HTTPS.
(index):143 Uncaught ReferenceError: $ is not defined
    at (index):143

The plugin doesn't seem to load on that page and the map coordinates don't line up with the image.