Three.js model doesn't appear?

[feixiangtest]

I write a binaryLoader.js,which used to parse my own format model .and I make a scene with three.js and loaded my model.it work well in pc browser,but when I load the model on mobile browser,the model can't appear(sometimes it can appear,sometimes it can't),but in fact,the scene contains the model,just can't appear.such as the following picture: