Brian Beard

Fixed a small bug in the serializer which was causing some errors not to be logged by Elmah

HTTP status 499 seems inappropriate when gateway times out waiting on server

8

## Expected Behavior / New Feature When the gateway (Ocelot) times out waiting for the server to respond, I would expect an HTTP error code of [504](https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/504), not [499](https://kinsta.com/knowledgebase/499-error/). I...