FEATURE: [Experimental] Content Security Policy (#6514)

do not register new MIME type, parse raw body instead

spec/support/fake_logger.rb

@@ -1,9 +1,14 @@
 class FakeLogger
-  attr_reader :warnings, :errors
+  attr_reader :warnings, :errors, :infos
 
   def initialize
     @warnings = []
     @errors = []
+    @infos = []
+  end
+
+  def info(message = nil)
+    @infos << message
   end
 
   def warn(message)