Calibre caching of books in browser no longer works w/o https (in recent browsers) #1126
Description
With recent browsers like Firefox 62, http://box:8080 (Calibre 3.31.0 or apparently any version of Calibre) shows:
"WARNING: This browser does not support Application Cache so offline access to calibre will not work. Some browsers only enable Application Cache over HTTPS connections, so you may have to setup HTTPS for your calibre server."
What are the best ways to address this?