FYI
Internet Explorer 11 does not support well webgl render mode.
FIX: Put the scene to "renderMode": "2d",
then do JS browser detection and in the "onSceneLoaded" function put back layer render mode to 'webgl' for other browser (chrome, safari, firefox)
wade.setLayerRenderMode(25, 'webgl');
wade.setLayerRenderMode(30, 'webgl');