From fb657f7a1e3ef326214e0c42a5a0dd6dc0109338 Mon Sep 17 00:00:00 2001
From: Gaming4JC <g4jc@hyperbola.info>
Date: Sun, 19 Jan 2020 22:59:16 -0500
Subject: Bug 1406325 - Part 4: Use mType for LookupCustomElementDefinition and
 also removing parts of v0.

Tag UXP Issue #1344
---
 parser/html/nsHtml5TreeOperation.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'parser/html/nsHtml5TreeOperation.cpp')

diff --git a/parser/html/nsHtml5TreeOperation.cpp b/parser/html/nsHtml5TreeOperation.cpp
index a7d3da259..d530cbba3 100644
--- a/parser/html/nsHtml5TreeOperation.cpp
+++ b/parser/html/nsHtml5TreeOperation.cpp
@@ -429,9 +429,12 @@ nsHtml5TreeOperation::CreateHTMLElement(
 
     isCustomElement = (aCreator == NS_NewCustomElement || !isValue.IsEmpty());
     if (isCustomElement && aFromParser != dom::FROM_PARSER_FRAGMENT) {
+      RefPtr<nsIAtom> tagAtom = nodeInfo->NameAtom();
+      RefPtr<nsIAtom> typeAtom =
+        isValue.IsEmpty() ? tagAtom : NS_Atomize(isValue);
+
       definition = nsContentUtils::LookupCustomElementDefinition(document,
-        nodeInfo->LocalName(), nodeInfo->NamespaceID(),
-        (isValue.IsEmpty() ? nullptr : &isValue));
+        nodeInfo->LocalName(), nodeInfo->NamespaceID(), typeAtom);
 
       if (definition) {
         willExecuteScript = true;
-- 
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