Physics/Collider Issues

Hello,

I recently built a WebGL test to see how my app performed. Everything was ok until the game tried to work with colliders. I have a game area which, when my ball object hits it, the game is over and should go on to the game over screen.

In the editor this works fine. However, in the web build the item just bounces back and doesn't detect that the game area has been hit by the ball. I haven't changed anything with regards to the objects so am I missing something when it comes to Physics and WebGL?

I am running 5.2.1f1 Personal and Chrome Version 45.0.2454.101 m. This issue also happens in Firefox.

This is the link to the game: https://dl.dropboxusercontent.com/u/31186240/WebGLBounce/index.html

Thanks