We are using McAfee SaaS Web protection with MCP v188.8.131.52.
Some file downloads get stuck at 0.1 MB. This is happening with very reputed downloads like Eclipse IDE, Java EE 8 SDK. It happens on all computers and with all browsers.
When I check SaaS portal it shows MIME/media as "application/x-empty" as shown below. Everything works fine if the proxy is bypassed.