# File lib/rack/perftools_profiler/start_profiling.rb, line 22
    def response
      [200, {'Content-Type' => 'text/plain'}, 
       ["Profiling is now enabled.\nVisit the URLS that should be profiled.\nWhen you are finished, visit /__stop__, then visit /__data__ to view the results.\n"
       ]]
    end