The comment I replied to didn't say edge caching or reverse proxy - it said http caching. An edge/reverse proxy on the SaaS network doesn't solve 20 workstatio

The comment I replied to didn't say edge caching or reverse proxy - it said http caching. An edge/reverse proxy on the SaaS network doesn't solve 20 workstations in an office making requests over the internet to retrieve the same resource. A regular http proxy in that office does prevent 20 internet requests but it requires MITM for https to work.