diff --git a/packages/editor/src/client/components/Editor.js b/packages/editor/src/client/components/Editor.js
index 77faee9d9d..ea971e26a8 100644
--- a/packages/editor/src/client/components/Editor.js
+++ b/packages/editor/src/client/components/Editor.js
@@ -663,6 +663,7 @@ function Editor({
 
   const getBackUrl = () => {
     if (!fileInfo) return;
+    const search = window.location.search;
     const shareIndex = search.indexOf("share=");
     const key = search.substring(shareIndex + 6);