Bit late to the party, but this might help.

However, the instructions (based on a French language browser) needed a bit of modification for me. Here's what I did:

1. Attempt to browse to the site
2. Click on the "View Site Information" icon on the left of the URL bar
3. Click "Site Settings"
4. Scroll down and find the "Insecure content" option, and set it to "Allow"
5. Restart the browser

This fixed an http url redirect issue I had, but it might help with your issue too.