Javascript redirect within Facebook app iframe

I'm trying to do a redirect via JS within an FB app i开发者_StackOverflown an iframe and it's busting out of the iframe.

Currently it looks like this:

window.location.href = '/bla'

But this is busting out of the iframe. How do I ensure the redirect occurs, but only within the iframe?

Try wit this:

window.top.location.href = "http://www.example.com"; 

try this.

self.location.href='/bla';