derp, append pwd to data, not xhr options

4chan_x.user.js

@@ -3449,13 +3449,13 @@
       data = new FormData();
       data.append(id, 'delete');
       data.append('mode', 'usrdel');
+      data.append('pwd', pwd);
       return $.ajax("https://sys.4chan.org/" + g.BOARD + "/imgboard.php", {
         onload: DeleteButton.load,
         onerror: DeleteButton.error
       }, {
         type: 'post',
-        form: data,
-        pwd: pwd
+        form: data
       });
     },
     load: function() {

script.coffee

@@ -2633,13 +2633,13 @@ DeleteButton =
     data = new FormData()
     data.append id, 'delete'
     data.append 'mode', 'usrdel'
+    data.append 'pwd', pwd
     $.ajax "https://sys.4chan.org/#{g.BOARD}/imgboard.php", {
         onload:  DeleteButton.load
         onerror: DeleteButton.error
       }, {
         type: 'post'
         form: data
-        pwd:  pwd
       }
   load: ->
     doc = d.implementation.createHTMLDocument ''