The question misses one point - a full (no-cache) refresh in Firefox is done with Ctrl+Shift+R. Most (if not all) browsers support Ctrl+r for refreshing the pag

The question misses one point - a full (no-cache) refresh in Firefox is done with Ctrl+Shift+R. Most (if not all) browsers support Ctrl+r for refreshing the page as well, but i'm not sure what headers are sent in each one.