Fiddler blocks HTTPS POST request from Application built by Unity

[Daisuke]

Hello,

I tried to capture http traffic sent/received by Windows Application made with Unity.
The problem is "Fiddler blocks HTTPS POST request from Application built by Unity". The request failed while CONNECT and the application got an error.

HTTP GET, HTTPS GET, HTTP POST work and get captured. Only HTTPS POST fails.
Plus, other similar tools i.e. Charles or Burp Suite work for HTTPS POST. So I guess something wrong with Fiddler.

I uploaded source code, application, and capture file: https://dl.dropboxusercontent.com/u/4431150/FiddlerTest.zip

Please help me to capture HTTPS POST request.

thanks,
Daisuke