I have recently installed an SSL certificate in my dev environment so I can read secure cookies generated by some of our other sites. I updated the various .config files where I need to specify the community's root URL to use https://... However, now that I have made that update, the icon font is no longer being loaded and, subsequently, many UI elements are being rendered as squares.
e.g.
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This appears to be coming from the icons.less file.

You can see error in Chrome dev console where I am filtering on URLs containing "themefiles". All the font file URLs start with http://, but the favicon.png, which is in the same directory starts with https://.

Any ideas on how I can fix this? I'm currently running 11.1.0.9731.