Bug: ground texture very gray in WebGL Build if Fog enabled

I attached a very simple project that uses the Floor Prefab from the Standard Assets. I also attached one Screenshot that shows its color in the Editor (or on Linux/Windows/Mac builds), which is blue. I attached another Screenshot that shows its color in a WebGL build, where the color is almost entirely gray (you can still see the rectangle pattern though).

It only happens is Window->Lighting->Fog is enabled.

Tested it on Linux Mint 17.2 Cinnamon, Chromium and Firefox. I also tested it with the Mobile->Diffuse shader, same results though.