Safari Fragment shader failed to compile

We are getting a "Fragment shader failed to compile " error only in Safari.
Screenshot is attached.

It works in Chrome 49, Firefox 45, IE 11

Any thoughts?

Does it happen for you on

Safari’s WebGL implementation is incomplete and we’ve had to work around several issues with it in the past. This looks like an issue that we already fixed in past versions. What version of Cesium are you using? What version of OS X and Safari? What video card?

The map view renders on the "" link Matt provided. No error. I am using Safari Version 9.0.3 (10601.4.4) on Yosemite (OSX v.10.10.5 (14F1605)).

Let me know if you want me to test anything else.


And I'm using a NVIDIA GeForce GTX 780M 4096 MB GPU. According to the hardware specs I found, it support OpenGL v.4.5 and OpenCL v.1.1.


Matt, I’m gonna upgrade our version to see if that’s the problem. We are using version 1.11

Upgraded to 1.19 and that did the trick. Thanks Matt!