diff --git a/4chan_x.user.js b/4chan_x.user.js
index 37611a6b4..90d2050e5 100644
--- a/4chan_x.user.js
+++ b/4chan_x.user.js
@@ -327,19 +327,18 @@
       return $.rm(script);
     },
     ajax: function(url, cb, opts) {
-      var key, r, val, _ref;
-      opts.type || (opts.type = 'get');
-      opts.event || (opts.event = 'onload');
+      var event, headers, key, r, type, val;
+      if (opts == null) opts = {};
+      type = opts.type, event = opts.event, headers = opts.headers;
+      type || (type = 'get');
+      event || (event = 'onload');
       r = new XMLHttpRequest();
-      if (opts.headers) {
-        _ref = opts.headers;
-        for (key in _ref) {
-          val = _ref[key];
-          r.setRequestHeader(key, val);
-        }
+      for (key in headers) {
+        val = headers[key];
+        r.setRequestHeader(key, val);
       }
-      r[opts.event] = cb;
-      r.open(opts.type, url, true);
+      r[event] = cb;
+      r.open(type, url, true);
       r.send();
       return r;
     },
diff --git a/script.coffee b/script.coffee
index a7de9d731..a497dbe81 100644
--- a/script.coffee
+++ b/script.coffee
@@ -231,15 +231,15 @@ $.extend $,
       textContent: "(#{code})()"
     $.add d.head, script
     $.rm script
-  ajax: (url, cb, opts) ->
-    opts.type  or= 'get'
-    opts.event or= 'onload'
+  ajax: (url, cb, opts={}) ->
+    {type, event, headers} = opts
+    type  or= 'get'
+    event or= 'onload'
     r = new XMLHttpRequest()
-    if opts.headers
-      for key, val of opts.headers
-        r.setRequestHeader key, val
-    r[opts.event] = cb
-    r.open opts.type, url, true
+    for key, val of headers
+      r.setRequestHeader key, val
+    r[event] = cb
+    r.open type, url, true
     r.send()
     r
   cache: (url, cb) ->