Making/finding html5 validator bookmarklet

Question

I want to find or make a bookmarklet that will validate the html content of a currently viewed page using the W3C HTML 5 validator.

I have found two bookmarklets and

Answer 1

I was also getting the 'Sorry! This document cannot be checked.' error, resolved it by adding an accept-charset "utf-8" to the form attributes.

In the function that creates the form element add the following line: form.acceptCharset = "utf-8";

It worked for me.