Add events back to queue on error

Author: trotter

lib/cube/emitter-http.js

@@ -26,12 +26,13 @@ module.exports = function(protocol, host, port) {
     };
 
     var postRequest = http.request(postOptions, function(res) {
+      if (res.statusCode !== 200) queue.unshift.apply(queue, events);
       if (queue.length) setTimeout(send, 500);
     });
 
     postRequest.on('error', function (e) {
       console.warn(e.message);
-      // TODO: Add events back to queue on error
+      queue.unshift.apply(queue, events);
     });
 
     postRequest.write(body);