[RESOLVE]Google Chrome:ERROR: Failed to link program: [object WebGLProgram]

Hi:

I used google chrome (Version 31.0.1650.63) debug js, and run tests is ok.
But today it occured error:
Cocos2d-html5-v2.2 CCCommon.js:145
cocos2d: ERROR: Failed to link program: [object WebGLProgram]

and only modify renderMode:1 Js app can to run
What problem about this?

var d = document;
var c = {
COCOS2D_DEBUG:2, //0 to turn debug off, 1 for basic debug, and 2 for full debug
box2d:true,
chipmunk:false,
showFPS:true,
loadExtension:true,
frameRate:60,
renderMode:0, //Choose of RenderMode: 0(default), 1(Canvas only), 2(WebGL only)

Hi max,

please reference this :

Bests
David

Thanks David,It’s work.
I only want to know why it suddenly does not work, and before all good