Does Sharepoint (365) block sites that don't have "https"? I've tried using external stylesheets and embedding code that are unsecured (http), but they didn't work. Anyone know more about this?
1 Answer
Check F12 Dev tools. Your browser blocks mixed content.
For all Browsers: https://help.optimizely.com/hc/en-us/articles/204602997-Troubleshooting-Compatibility-mode-warning-and-mixed-content-in-the-Editor
You can serve Stylesheets from other HTTPS sites, but not .woff Font files.