From 602414a5860393894deb5079a3918f19f24a7a86 Mon Sep 17 00:00:00 2001
From: David Reed <reedswork@proton.me>
Date: Wed, 23 Nov 2022 13:57:14 -0500
Subject: [PATCH] conditional reference to HTMLIFrameElement

This will prevent an exception being thrown in workers.
---
 src/uv.handler.js | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/uv.handler.js b/src/uv.handler.js
index 64bf3bb..4ba612c 100644
--- a/src/uv.handler.js
+++ b/src/uv.handler.js
@@ -700,10 +700,13 @@ function __uvHook(window, config = {}, bare = '/bare/') {
         },
     });
 
-    const contentWindowGet = Object.getOwnPropertyDescriptor(
-        HTMLIFrameElement.prototype,
-        'contentWindow'
-    ).get;
+    // HTMLIFrameElement may not be defined (workers)
+    const contentWindowGet =
+        HTMLIFrameElement &&
+        Object.getOwnPropertyDescriptor(
+            HTMLIFrameElement.prototype,
+            'contentWindow'
+        ).get;
 
     function uvInject(that) {
         const win = contentWindowGet.call(that);