I'm using box2dweb 2.1a3 and a problem (I want to reproduce Angry Birds):
I read a file with level and when box2d body (#1) collides with other thing (#2) I want to destroy first body(#1). But when I will put b2d bony on another b2d body these sometimes collides (level did pixel perfect).
And of course I can post some parts of my code.