Get HTML source code as a string

Question

I want the source code of an HTML page (1.html) to be used in another page (2.html). Furthermore, I want to perform operations on it in 2.html

Answer 1

To get the DOM converted to a string:

document.getElementsByTagName('html')[0].innerHTML

Question: what do you mean by "use it"? Do you need to include 1.html inside 2.html? Or do you just need to process it?