How to manipulating browser histori using pushstate HTML5

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Javascript

jQuery

HTML5

Html5 coming with Pushing n Popping feature .. and more easy to manipulating browser using this command ..

var stateObj = { foo: "bar" };
history.pushState(stateObj, "page 2", "bar.html");

example from this Mozilla.org
but i trying to replace bar.html using another url website like http://youtube.com .. it stuck and i can't goes to destination ..
how to do that .. please help me .. thanks

What I have tried:

<pre>var stateObj = { foo: "bar" };
history.pushState(stateObj, "page 2", "bar.html");