Noticed a couple of issues with browsers today:

Chrome:

• Problem: silently started blocking vectors http requests from a https site
• Solution: click on the grey shield on the right of the address bar and enable unsafe javascript

Firefox:

• Problem: silently started blocking vectors http requests from a https site
• Solution: click on the i on the left of the address bar and enable mixed mode
• Problem: Cross-Origin Request Blocked
• Solution: not sure yet, don't have much to do with front end will update if not closed

I am not aware of docs covering this