Wow, Instagram has really gone over to the dark side. They haven't just broken the back button, they have entirely disabled it. There is no way to escape that site other than typing in a new URL or going to your browser history.
Interesting. I'm using firefox with noscript. So it's not that Instagram has intentionally disabled the back button, it's (apparently) that they're trying to intercept it somehow and when they fail it ends up disabled. Still kinda hinky if you ask me.
