Was writing a header when I shouldn't have.

src/router/router.go

@@ -152,25 +152,26 @@ func serveEndpoint(w http.ResponseWriter, req *http.Request, route *Route) {
 		golog.Infoln("Error proxying!", err)
 		etype := reflect.TypeOf(err)
 		golog.Infoln("err type:", etype)
-		w.WriteHeader(http.StatusInternalServerError)
 		// can't figure out how to compare types so comparing strings.... lame.
 		if strings.Contains(etype.String(), "net.OpError") { // == reflect.TypeOf(net.OpError{}) { // couldn't figure out a better way to do this
-			golog.Infoln("It's a network error and less than three other workers available so we're going to remove it and start new task.")
+			golog.Infoln("It's a network error so we're going to remove destination.")
 			route.Destinations = append(route.Destinations[:destIndex], route.Destinations[destIndex + 1:]...)
 			err := putRoute(route)
 			if err != nil {
-				golog.Infoln("couldn't update routing table:", err)
+				golog.Infoln("Couldn't update routing table:", err)
 				common.SendError(w, 500, fmt.Sprintln("couldn't update routing table", err))
 				return
 			}
 			golog.Infoln("New route:", route)
 			if len(route.Destinations) < 3 {
+				golog.Infoln("After network error, there are less than three destinations, so starting a new one. ")
 				// always want at least three running
 				startNewWorker(route)
 			}
 			serveEndpoint(w, req, route)
 			return
 		}
+		common.SendError(w, 500, fmt.Sprintln("Internal error occurred:", err))
 		return
 	}
 	golog.Infoln("Served!")