--- a/src/goodjava/webserver/Connection.java	Sat May 23 19:01:57 2020 -0600
+++ b/src/goodjava/webserver/Connection.java	Sun May 24 19:44:58 2020 -0600
@@ -29,6 +29,7 @@
 		try {
 			Request request = new Request();
 			Response response;
+			String contentType = null;
 			try {
 				{
 					InputStream in = socket.getInputStream();
@@ -83,7 +84,7 @@
 						//System.out.println(new String(request.body));
 					}
 	
-					String contentType = (String)request.headers.get("content-type");
+					contentType = (String)request.headers.get("content-type");
 					if( contentType != null ) {
 						contentType = contentType.toLowerCase();
 						if( contentType.equals("application/x-www-form-urlencoded") ) {
@@ -108,7 +109,10 @@
 				response = server.handler.handle(request);
 			} catch(ParseException e) {
 				logger.warn("parse error\n"+request.rawHead.trim()+"\n",e);
-				response = Response.errorResponse(Status.BAD_REQUEST,e.toString());
+				String msg = e.toString();
+				if( contentType != null )
+					msg = "invalid content for content-type " + contentType + "\n" + msg;
+				response = Response.errorResponse(Status.BAD_REQUEST,msg);
 			}
 			response.headers.put("connection","close");
 			response.headers.put("content-length",Long.toString(response.body.length));