Use GetElementsByClassName on created document

Question

I created a document in Javascript using

newdoc = document.implementation.createHTMLDocument('Whatever')

and then I used

newdoc.innerHTML = document.innerHTML

to give him some code. The problem is that the DOM for newdoc doesn't seem to be fully formed and executing a function such as

newdoc.getElementsByClassName('somename')

on it yields undefined results. Do you know a solution for this problem?

Answer 1

document does not have innerHTML property.

You should use it on the body.

newdoc.body.innerHTML = document.body.innerHTML;