Instead of wasting time on Postman, I found Fiddler is the easiest way to read network size
Postman is actually using Jquery-style stuff to POST/GET/PUSH… data, then show result somehow. and the Network tab is not always working well. In my case, it never shows once how much data was transferred back, same in my teammates’ environments.
[NOTE] Fiddler gives you correct Tunnel Received only when request-response are in different physical location of intranet/internet.
Here is same API with different CompressionLevel
