fix #970

zloirock · Aug 10, 2021 · 3771519 · 3771519
1 parent 920121f
commit 3771519
Show file tree

Hide file tree

Showing 2 changed files with 15 additions and 16 deletions.
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,6 +1,6 @@
 ## Changelog
 ##### Unreleased
-- Nothing
+- One more fix crashing of `Object.create(null)` on WSH, [#970](https://github.com/zloirock/core-js/issues/970)
 
 ##### 3.16.1 - 2021.08.09
 - Fixed microtask implementation on iOS Pebble, [#967](https://github.com/zloirock/core-js/issues/967)

diff --git a/packages/core-js/internals/object-create.js b/packages/core-js/internals/object-create.js
@@ -34,17 +34,15 @@ var NullProtoObjectViaIFrame = function () {
   var iframe = documentCreateElement('iframe');
   var JS = 'java' + SCRIPT + ':';
   var iframeDocument;
-  if (iframe.style) {
-    iframe.style.display = 'none';
-    html.appendChild(iframe);
-    // https://github.com/zloirock/core-js/issues/475
-    iframe.src = String(JS);
-    iframeDocument = iframe.contentWindow.document;
-    iframeDocument.open();
-    iframeDocument.write(scriptTag('document.F=Object'));
-    iframeDocument.close();
-    return iframeDocument.F;
-  }
+  iframe.style.display = 'none';
+  html.appendChild(iframe);
+  // https://github.com/zloirock/core-js/issues/475
+  iframe.src = String(JS);
+  iframeDocument = iframe.contentWindow.document;
+  iframeDocument.open();
+  iframeDocument.write(scriptTag('document.F=Object'));
+  iframeDocument.close();
+  return iframeDocument.F;
 };
 
 // Check for document.domain and active x support
@@ -57,10 +55,11 @@ var NullProtoObject = function () {
   try {
     activeXDocument = new ActiveXObject('htmlfile');
   } catch (error) { /* ignore */ }
-  NullProtoObject = document.domain && activeXDocument ?
-    NullProtoObjectViaActiveX(activeXDocument) : // old IE
-    NullProtoObjectViaIFrame() ||
-    NullProtoObjectViaActiveX(activeXDocument); // WSH
+  NullProtoObject = typeof document != 'undefined'
+    ? document.domain && activeXDocument
+      ? NullProtoObjectViaActiveX(activeXDocument) // old IE
+      : NullProtoObjectViaIFrame()
+    : NullProtoObjectViaActiveX(activeXDocument); // WSH
   var length = enumBugKeys.length;
   while (length--) delete NullProtoObject[PROTOTYPE][enumBugKeys[length]];
   return NullProtoObject();