Alireza Balouch

Google is behind Angular so if they want this to be common framework to use on the net then they should think about how to index it to the google crawlers.

I don't think this is a bug. You are comparing a number.
It is like:

if( 0 == 'Foo' ) // it return TRUE

but if it was a string on both end:

if( '0' == 'Foo' ) // it return FALSE