Question

if I save location.href as

var h = location.href;

Then perform history.replaceState or pushState in (HTML5) to another href, lets say h2

And if we check h and h2, you will see them equal (in Chrome and Firefox, my IE seems not support HTML5 yet)

ok, my question is:

In this situation, how I know location.href is real or fake (by pushed).

[EDIT]

I add a sample: http://jsfiddle.net/W4bb3/

Answer 1

It seems you can’t at the moment in all browsers. There is the history.state method in firefox:

history.pushState({'foo': 'bar'}, null, 'test')
history.state // will return { foo="bar"}

So you can test that the state is not null, which will be if it was not set via pushState.