leave cache-control header alone in its entirety if disable_caching = false

Author: glaszig

lib/mini_profiler/profiler.rb

@@ -453,14 +453,14 @@ def inject_profiler(env, status, headers, body)
       # Rack::ETag has already inserted some nonesense in the chain
       content_type = headers['Content-Type']
 
+      headers['X-MiniProfiler-Original-Cache-Control'] = headers['Cache-Control'] unless headers['Cache-Control'].nil?
+
       if config.disable_caching
         headers.delete('ETag')
         headers.delete('Date')
+        headers['Cache-Control'] = "no-store, must-revalidate, private, max-age=0"
       end
 
-      headers['X-MiniProfiler-Original-Cache-Control'] = headers['Cache-Control'] unless headers['Cache-Control'].nil?
-      headers['Cache-Control'] = "#{"no-store, " if config.disable_caching}must-revalidate, private, max-age=0"
-
       # inject header
       if headers.is_a? Hash
         headers['X-MiniProfiler-Ids'] = ids_comma_separated(env)