Detached DOM with unknown Distance.

[Vishnu Mahendiren]

I took heapsnapshot and got to know there are some Detached DOM in tree with Distance nil and also the Retainers shows Object dead. It also doesn't show any javascript reference. Is there any way to debug how to get retainers of these native objects and I also want to know reason for this Detached DOM. Attached Screenshot of my Snapshot . 

Thanks, 

Vishnu.