Thanks for the feedback! I did link the official site, but it's kinda buried in the paragraph and maybe not obvious.
I added some text to the x-frame-options to note the CSP rules - it's a great addition.
I added some text to the x-frame-options to note the CSP rules - it's a great addition.
I've reminded myself that v3 still hasn't fully stabilized into an official recommendation despite being in final-draft since October (it's basically closed for new things) so for now awareness of 2 and 3 is probably going to continue to be important for anyone responsible for producing a moderately complex string (guess who that is on my teams ;)). Though even at just level 2 there are a few things I could say about differences in behavior just between Chrome and Firefox... Testing is crucial!