fix: download IE checks (#2669)

Author: Finanzasparahippies

.changeset/lemon-berries-hide.md

@@ -0,0 +1,5 @@
+---
+"@react-pdf/renderer": patch
+---
+
+fix: download IE checks

packages/renderer/src/dom/PDFDownloadLink.js

@@ -22,7 +22,7 @@ export const PDFDownloadLink = ({
   }
 
   const handleDownloadIE = () => {
-    if (window.navigator.msSaveBlob) {
+    if (instance && window.navigator.msSaveBlob) {
       // IE
       window.navigator.msSaveBlob(instance.blob, fileName);
     }