From fbab1f4f9eab329cc3c807ac4606afe194cea51b Mon Sep 17 00:00:00 2001
From: Moonchild <moonchild@palemoon.org>
Date: Sun, 7 Jun 2020 18:09:13 +0000
Subject: [DOM] Hard-disable webcomponents and customelements prefs (redwood)

---
 dom/base/CustomElementRegistry.cpp |  3 +++
 dom/base/nsDocument.cpp            | 15 ++++++++-------
 modules/libpref/init/all.js        |  2 ++
 3 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/dom/base/CustomElementRegistry.cpp b/dom/base/CustomElementRegistry.cpp
index f582d635f..3f8322199 100644
--- a/dom/base/CustomElementRegistry.cpp
+++ b/dom/base/CustomElementRegistry.cpp
@@ -166,8 +166,11 @@ NS_INTERFACE_MAP_END
 /* static */ bool
 CustomElementRegistry::IsCustomElementEnabled(JSContext* aCx, JSObject* aObject)
 {
+  return false;
+/*
   return Preferences::GetBool("dom.webcomponents.customelements.enabled") ||
          Preferences::GetBool("dom.webcomponents.enabled");
+*/
 }
 
 /* static */ already_AddRefed<CustomElementRegistry>
diff --git a/dom/base/nsDocument.cpp b/dom/base/nsDocument.cpp
index 380593737..81e2783a4 100644
--- a/dom/base/nsDocument.cpp
+++ b/dom/base/nsDocument.cpp
@@ -5709,9 +5709,9 @@ nsDocument::IsWebComponentsEnabled(JSContext* aCx, JSObject* aObject)
 {
   JS::Rooted<JSObject*> obj(aCx, aObject);
 
-  if (Preferences::GetBool("dom.webcomponents.enabled")) {
-    return true;
-  }
+  //if (Preferences::GetBool("dom.webcomponents.enabled")) {
+  //  return true;
+  //}
 
   // Check for the webcomponents permission. See Bug 1181555.
   JSAutoCompartment ac(aCx, obj);
@@ -5725,9 +5725,9 @@ nsDocument::IsWebComponentsEnabled(JSContext* aCx, JSObject* aObject)
 bool
 nsDocument::IsWebComponentsEnabled(dom::NodeInfo* aNodeInfo)
 {
-  if (Preferences::GetBool("dom.webcomponents.enabled")) {
-    return true;
-  }
+  //if (Preferences::GetBool("dom.webcomponents.enabled")) {
+  //  return true;
+  //}
 
   nsIDocument* doc = aNodeInfo->GetDocument();
   // Use GetScopeObject() here so that data documents work the same way as the
@@ -5740,6 +5740,7 @@ nsDocument::IsWebComponentsEnabled(dom::NodeInfo* aNodeInfo)
 bool
 nsDocument::IsWebComponentsEnabled(nsPIDOMWindowInner* aWindow)
 {
+/*
   if (aWindow) {
     nsresult rv;
     nsCOMPtr<nsIPermissionManager> permMgr =
@@ -5753,7 +5754,7 @@ nsDocument::IsWebComponentsEnabled(nsPIDOMWindowInner* aWindow)
 
     return perm == nsIPermissionManager::ALLOW_ACTION;
   }
-
+*/
   return false;
 }
 
diff --git a/modules/libpref/init/all.js b/modules/libpref/init/all.js
index 0193c5ef1..17413b537 100644
--- a/modules/libpref/init/all.js
+++ b/modules/libpref/init/all.js
@@ -1248,8 +1248,10 @@ pref("privacy.trackingprotection.pbmode.enabled",  false);
 pref("dom.event.contextmenu.enabled",       true);
 pref("dom.event.clipboardevents.enabled",   true);
 
+/*
 pref("dom.webcomponents.enabled",           false);
 pref("dom.webcomponents.customelements.enabled", false);
+*/
 
 pref("javascript.enabled",                  true);
 // Enable Array.prototype.values
-- 
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