Get the whole document's html with JavaScript/JQuery

Question

I know it\'s already discussed here, but there were no solution to get the whole document (including doctype).

$(document).html(); returns null

Answer 1

This is a function which has support in IE6+, it does't use outerHTML for even more support, it adds the doctype and uses a few tricks to get the html tag and its attributes. In order to receive a string with the doctype, and doesn't use outerHTML so it supports every browser. It uses a few tricks to get the html tag. Add this code:

document.fullHTML = function () {
    var r = document.documentElement.innerHTML, t = document.documentElement.attributes, i = 0, l = '',
        d = '';
    for (; i < t.length; i += 1) l += ' ' + t[i].name + '="' + t[i].value + '"';
    return d+'\n' + r + '';
}

Now, you can run this function:

console.log(document.fullHTML());

This will return the HTML and doctype.

I ran this on example.com, here are the results