Earlier quoted context omitted.
>Download from my website? Some stupid browser will display the zip data onscreen. Are your customers using IE6 or something? Customers like that should be fired.
Oh no, I've seen Chrome and Firefox (with a well-conforming web server) loading zip files as if they're pages. The culprit? Intercepting HTTPS-breaking inspection. This is not just in enterprise environments, antivirus companies somehow even justified "HTTPS scanning" as a feature.
When my workplace tried that, I just asked the CISO how they handle the bank credentials of the people that access their bank account at work. I never got an answer, but the system was gone a week later.