WebGL standard shader smoothness problem

I am getting standard shader smoothness problem in WebGL builds.
Everything works well in Editor and WebPlayer:

But In WebGL build only the sphere displays properly:
Does anyone know the fix?
You can see the WebGL build here:
http://virtualplayground.d2.pl/WebGL/st15/index.php?m_Wheel_S

Hey guys,

We are having this exact problem, anything new on that front ?

The only solutions we have so far is to explore this thread with a custom standard shader, or go back to legacy shaders.

if it’s any consolation to you, it works fine in 5.4.0b6.

Well, there is that. Thanks topofsteel.