Hi,
Issue: When we delete a node, it gets deleted successfully, but after that it binds each sub-nodes of particular node with canDrop method, then code throws javascript error.
I found that it was caused because canDrop value is set to true by default in delete_obj callback(node.js), so the function defined for canDrop does't gets called in the callback.
And, it is regression of commit id: 26aa5607ad8eb92591e732837e6aa1a0c48f62b3 which was introduced for Server-group drop functionality. The way it was coded was wrong. so, I have fixed the issue related to "Fix dropping of server groups" in this patch.