Merge pull request #1059 from yehuya/fixMissingWindowElement

fix: handle undefined Element in DOMPurify initialization
cure53 · Jan 22, 2025 · 72760ca · 72760ca
2 parents f41b45d + bc72d44
commit 72760ca
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Showing 2 changed files with 14 additions and 1 deletion.
diff --git a/src/purify.ts b/src/purify.ts
@@ -125,7 +125,8 @@ function createDOMPurify(window: WindowLike = getGlobal()): DOMPurify {
   if (
     !window ||
     !window.document ||
-    window.document.nodeType !== NODE_TYPE.document
+    window.document.nodeType !== NODE_TYPE.document ||
+    !window.Element
   ) {
     // Not running in a browser, provide a factory function
     // so that you can pass your own Window

diff --git a/test/test-suite.js b/test/test-suite.js
@@ -870,6 +870,18 @@
         DOMPurify({ document: 'not really a document' }).sanitize,
         undefined
       );
+      assert.strictEqual(
+        typeof DOMPurify({ document, Element: undefined }).version,
+        'string'
+      );
+      assert.strictEqual(
+        DOMPurify({ document, Element: undefined }).isSupported,
+        false
+      );
+      assert.strictEqual(
+        DOMPurify({ document, Element: undefined }).sanitize,
+        undefined
+      );
       assert.strictEqual(typeof DOMPurify(window).version, 'string');
       assert.strictEqual(typeof DOMPurify(window).sanitize, 'function');
     });