From 3dddb70038deb4a4f41ae5aa6dcbbbfc3cb58a7f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Emilio=20Cobos=20=C3=81lvarez?= <ecoal95@gmail.com>
Date: Mon, 26 Sep 2016 09:45:43 +0200
Subject: [PATCH] script: Fix bogus is_listed_element assertion.

---
 components/script/dom/htmlformelement.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/components/script/dom/htmlformelement.rs b/components/script/dom/htmlformelement.rs
index a4cb42711d7..8759fbafe5e 100644
--- a/components/script/dom/htmlformelement.rs
+++ b/components/script/dom/htmlformelement.rs
@@ -203,7 +203,8 @@ impl HTMLFormElementMethods for HTMLFormElement {
                                 elem.downcast::<HTMLTextAreaElement>().unwrap().form_owner()
                             }
                             _ => {
-                                debug_assert!(!elem.downcast::<HTMLElement>().unwrap().is_listed_element());
+                                debug_assert!(!elem.downcast::<HTMLElement>().unwrap().is_listed_element() ||
+                                              elem.local_name() == &atom!("keygen"));
                                 return false;
                             }
                         }