Add Content-Length header

Nginx requires this header to be present in a POST request.

Author: Rohan Jain

lib/utils.js

@@ -52,12 +52,16 @@ var alertBrowserStack = function alertBrowserStack (subject, content, params, fn
   params.subject = subject;
   params.content = content;
 
+  var body = querystring.stringify(params);
   var options = {
     hostname: urlObject.hostname,
     port: urlObject.port,
     path: urlObject.path,
     method: 'POST',
-    auth: config.username + ":" + config.key
+    auth: config.username + ":" + config.key,
+    headers: {
+      'Content-Length': body.length
+    }
   };
 
   var callback = function (res) {
@@ -89,7 +93,7 @@ var alertBrowserStack = function alertBrowserStack (subject, content, params, fn
   };
 
   var request = http.request(options, callback);
-  request.write(querystring.stringify(params));
+  request.write(body);
   request.end();
 
   return request;