Bug 1398401 - Add preference check for custom element setup. r=smaug

2017-09-12 00:40:00 -04:00
parent d2dfd47222
commit e12408afb5
1 changed files with 3 additions and 1 deletions
--- a/parser/html/nsHtml5TreeOperation.cpp
+++ b/parser/html/nsHtml5TreeOperation.cpp
@@ -445,7 +445,9 @@ nsHtml5TreeOperation::CreateHTMLElement(
                            false);

        // Custom element setup may be needed if there is an "is" attribute.
-        if (kNameSpaceID_None == nsuri && !prefix && nsGkAtoms::is == localName) {
+        if (nsContentUtils::IsWebComponentsEnabled() &&
+            kNameSpaceID_None == nsuri &&
+            !prefix && nsGkAtoms::is == localName) {
          nsContentUtils::SetupCustomElement(newContent, &value);
        }
      }