improved error handling for TLS/TCP proxying

lib/goldilocks.js

@@ -94,6 +94,17 @@ module.exports.create = function (deps, config) {
 
       });
 
+      // Not sure how to effectively report this to the user or client, but we need to listen
+      // for the event to prevent it from crashing us.
+      newConn.on('error', function (err) {
+        console.error('TCP forward connection error', err);
+        conn.end();
+      });
+      conn.on('error', function (err) {
+        console.error('TCP forward client error', err);
+        newConn.end();
+      });
+
       newConn.pipe(conn);
       conn.pipe(newConn);
     };

lib/modules/tls.js

@@ -147,6 +147,17 @@ module.exports.create = function (deps, config, netHandler) {
       , remotePort:    opts.port    || extractSocketProp(socket, 'remotePort')
     });
 
+    // Not sure how to effectively report this to the user or client, but we need to listen
+    // for the event to prevent it from crashing us.
+    newConn.on('error', function (err) {
+      console.error('TLS proxy connection error', err);
+      socket.end();
+    });
+    socket.on('error', function (err) {
+      console.error('TLS proxy client error', err);
+      newConn.end();
+    });
+
     newConn.write(opts.firstChunk);
     newConn.pipe(socket);
     socket.pipe(newConn);