Fix submit of form with input[name=action]

Author: SamyPesse

jquery.pjax.js

@@ -118,15 +118,16 @@ function handleClick(event, container, options) {
 function handleSubmit(event, container, options) {
   options = optionsFor(container, options)
 
-  var form = event.currentTarget
+  var form = event.currentTarget;
+  var $form = $(form);
 
   if (form.tagName.toUpperCase() !== 'FORM')
     throw "$.pjax.submit requires a form element"
 
   var defaults = {
     type: form.method.toUpperCase(),
-    url: form.action,
-    container: $(form).attr('data-pjax'),
+    url: $form.attr('action'),
+    container: $form.attr('data-pjax'),
     target: form
   }