t3hc13h/Nancy — comment on commit 6e22afee82c2ff0994efe9ac379b98ec8fe8c856
File: src/Nancy.Hosting.Owin/Extensions/ResponseExtensions.cs line 13
By t3hc13h:

I'm splitting hairs over a few ticks here but I have found Any to be slower. Simply inlining the Count > 0 call would seem to be the fastest.