Viewer not updating properly

```
I want change the vertexBuffer of a mesh on a button click,here is my code ,its
not working in chrome but working in firefox;

function changesize(size)
{
$.ajax({
type: 'POST',
url: 'newpiont.php',
data: "part_id="+size,
success: function(result){
scene.removeChild(lowernormal);
var Allpoint = JSON.parse(result);

lowernormal.vertexBuffer = JSON.parse("[" + Allpoint['vertexBuffer'] + "]");
lowernormal.indexBuffer = JSON.parse("[" + Allpoint['indexBuffer'] + "]");
lowernormal.texCoordBuffer = JSON.parse("[" + Allpoint['texCoordBuffer'] + "]");
lowernormal.texCoordIndexBuffer = JSON.parse("[" + Allpoint['texCoordIndexBuffer'] + "]");
lowernormal.setMaterial(mat);
lowernormal.init();
scene.addChild(lowernormal);
viewer.update();
}
});

```

Original issue reported on code.google.com by `prasen.b...@gmail.com` on 31 Jul 2014 at 10:51

Start by reproducing changesize in Chrome and Firefox with the supplied snippet, then inspect the mesh initialization and viewer.update flow. Compare how vertexBuffer and related buffers are handled across browsers. Done means the mesh updates and renders correctly after the button click in Chrome as well as Firefox.

Written by the indexing model from the issue text.