Form: Do not encode actions twice

library/Icinga/Web/Form.php

@@ -1086,6 +1086,24 @@ class Form extends Zend_Form
         return $name;
     }
 
+    /**
+     * Set the action to submit this form against
+     *
+     * Note that if you'll pass a instance of URL, Url::getAbsoluteUrl('&') is called to set the action.
+     *
+     * @param   Url|string  $action
+     *
+     * @return  $this
+     */
+    public function setAction($action)
+    {
+        if ($action instanceof Url) {
+            $action = $action->getAbsoluteUrl('&');
+        }
+
+        return parent::setAction($action);
+    }
+
     /**
      * Set form description
      *

public/js/icinga/events.js

@@ -200,8 +200,7 @@
             var icinga = self.icinga;
             // .closest is not required unless subelements to trigger this
             var $form = $(event.currentTarget).closest('form');
-            var regex = new RegExp('&', 'g');
-            var url = $form.attr('action').replace(regex, '&'); // WHY??
+            var url = $form.attr('action');
             var method = $form.attr('method');
             var $button = $('input[type=submit]:focus', $form).add('button[type=submit]:focus', $form);
             var $target;