Histree storage doesn't work in Single Page Apps (like Facebook)

[elliotaplant]

This is probably happening because SPA's don't trigger navigation events like 'normal' webpages do. Instead of injecting a script that runs every time a page loads, we should try to listen for url changes and update our tree every time.

[elliotaplant]

This would also solve the issue where the tree isn't updated until the page fully loads