Today, serious problems began with physics in webgl build of Chrome, just the latest version. In fact, physics has ceased to operate stably, a character out of control, etc. I use the latest stable version of unity.
Has anyone the same problem? There is a solution?
Character Controller component is not working correct in webgl on chrome now 
Hello everyone, I am a member of Home3D team. We created a cloud platform that lets you create, customize and share plans. (www.planimetrie3d.com)
With the latest version of Chrome V53 we encounter this problem for Windows PC only: When the character controller hit the ground, the camera flicker, and after passes through the ground.
Here I propose a demo that reproduces the problem, which occurs only on Chrome installed on Windows not with other browsers or on Mac, the demo can be reached via the following link:
www.planimetrie3d.com/chromepcbug
We appreciate every clue helps everyone.
Chances are, this is the same issue as described here: Chrome 53 breaks raycasting in WebGL? - Unity Engine - Unity Discussions
I’d verify if it is by checking that it only happens in 53, and not in older or newer versions of Chrome. If it is, then it is likely the same, and Google is on to it, and aiming to fix it in the next 53 dot release.