RawImage acts weird in webgl build

I have a rawimage in my ui, where I assign the texture via code:

Code (csharp):

1. public class Test : MonoBehaviour {
2.    public Texture2D source;
3.    public RawImage image;
4.  
5.    void Start () {
6.     image.texture = source;
7.     image.SetNativeSize();
8.   }
9. }

(it's more complex than this, but this reproduces the bug)

In the editor or windows/webplayer build it looks like this:



In a webgl build it looks like this:



Someone an idea what's going on?

(Unity 5.2.2p2)

 

Filed a bug report: 747302

I'll try the editor later this evening.

 

Tried it with the argument (<OpenGL 4.2 core profile> in the title bar), image looks correct so no repro.

 

Yes, 288x352px