Remove unnecessary logic

lib/jsgi/media.js

@@ -90,7 +90,8 @@ function Deserialize(mediaSelector, nextApp){
 function Serialize(mediaSelector, nextApp){
 	return function(request){
 		return when(nextApp(request), function(response){
-			if(response.body === undefined){
+			var body = response.body;
+			if(body === undefined){
 				if(request.method === "GET"){
 					response.status = 404;
 					response.body = request.pathInfo + " not found";
@@ -102,22 +103,19 @@ function Serialize(mediaSelector, nextApp){
 					return response;
 				}
 			}
-			var responseMedia = mediaSelector(response.body, request.headers["accept"]);
+			var headers = response.headers;
+			var responseMedia = mediaSelector(body, request.headers["accept"]);
 			if(!responseMedia){
 				//TODO: List acceptable media types
 				return {status: 406, headers: {}, body:["The Accept header did not contain an acceptable media type"]};
 			}
-			var headers = response.headers;
 			headers.vary = (headers.vary ? headers.vary + "," : "") + "Accept" + request.variedOn;
-			if (!headers["content-type"] || headers['content-type']!=responseMedia.mediaType) {
-				headers["content-type"] = responseMedia.media.mediaType + "; charset=UTF-8";
-				var body = response.body;
-				var schema = body && body.schema;
-				if(schema && schema.schema){
-					headers["content-type"] += "; profile=" + request.scriptName + "/Class/" +  schema.schema.getId(schema);
-				}
-				response.body = responseMedia.media.serialize(body, responseMedia.parameters, request, response);
+			headers["content-type"] = responseMedia.media.mediaType + "; charset=UTF-8";
+			var schema = body && body.schema;
+			if(schema && schema.schema){
+				headers["content-type"] += "; profile=" + request.scriptName + "/Class/" +  schema.schema.getId(schema);
 			}
+			response.body = responseMedia.media.serialize(body, responseMedia.parameters, request, response);
 			return response;
 		});
 	};