How do I verify required header params, Extract variables does not raise a fault for a missing header param?

[kurtkanaskie]

I want to get require certain header params in all my requests and extract them to variables. Seems like an easy thing to do with Extract Variables, but it doesn't raise a fault if a param is missing, it does if a payload element is missing.

Why not for other params?

Sure, I can put a condition after the Extract Variables and Raise Fault there, but seems like I should not have to do that.