poseAsClass

Using poseAsClass; when using poseAsClass to pose as another class, the posing class must be a subclass of the posed class.

eg. Class A and Class B
if B wants to pose as A,
then B needs to be a subclass of A for it to work

Now that I've got poseAsClass sorted out, all that is left is to figure out which class am I supposed to pose as exactly. Since WebFrameView is apparently not the right one. Just read a posting on cocoa-dev and WebHTMLView could be what I'm after.