[majormajor]

Chrome 27 on Snow Leopard: clicking the link from HN takes me to the page, but hitting the back button doesn't bring me back to HN, it looks like it tries to takes me back to countryaday.org which then redirects to countryaday.org/#/welcome

[pork]

Same on Chrome/Linux. Looks like you're using push/popState slightly incorrectly. To the parent: if you long-click the back button, you can jump to an arbitrary point in your history.