How do I get Sinatra to refrain from adding the X-Frame-Options header?

Question

I am using Sinatra to return some IFRAME contents, and I\'d like to allow cross-domain src. Unfortunately, Sinatra is automatically adding an X-Frame-Options header to my re

Answer 1

Neither of the options presented here worked for my sinatra app. I ended up adding an after filter to modify the X-Frame-Options header to allow the app to be framed in by Facebook.

after do
  headers({ 'X-Frame-Options' => 'ALLOW-FROM apps.facebook.com' })
end