I did successfully work through the example the author gave and blocked headers related to the iPhone, which I do not own, lol.
Also, I wonder if a person blocks font information, will his online banking be screwed up from then on, for example, because servers will just send out some ugly default font from the old days, like 12-point Courier that'll totally screw up tables, etc?
I’m sorry I haven’t had time to experiment with it yet. I’ll try to play with it tonight and see if I can figure anything out.