shutup_404.diff

diff --git a/actionpack/lib/action_dispatch/middleware/debug_exceptions.rb b/actionpack/lib/action_dispatch/middleware/debug_exceptions.rb
index c1562fc..f036359 100644
--- a/actionpack/lib/action_dispatch/middleware/debug_exceptions.rb
+++ b/actionpack/lib/action_dispatch/middleware/debug_exceptions.rb
@@ -81,12 +81,16 @@ module ActionDispatch
       return unless logger
 
       exception = wrapper.exception
+      klass_name = wrapper.exception.class.name
+      return if ActionDispatch::ExceptionWrapper.rescue_responses[klass_name] == :not_found
 
       trace = wrapper.application_trace
       trace = wrapper.framework_trace if trace.empty?
+      request = Request.new(env)
 
       ActiveSupport::Deprecation.silence do
-        message = "\n#{exception.class} (#{exception.message}):\n"
+        message = "\n#{request.url}"
+        message << "\n#{exception.class} (#{exception.message}):\n"
         message << exception.annoted_source_code.to_s if exception.respond_to?(:annoted_source_code)
         message << "  " << trace.join("\n  ")
         logger.fatal("#{message}\n\n")