From 3e01de6bfe5d0e4b8e6949508e6890a5e957cb3c Mon Sep 17 00:00:00 2001
From: Milan Crha <mcrha@redhat.com>
Date: Tue, 29 Nov 2022 17:36:39 +0100
Subject: [PATCH] I#2167 - e-web-view.js: Check for instantiated iframe
 document

Closes https://gitlab.gnome.org/GNOME/evolution/-/issues/2167
---
 data/webkit/e-web-view.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/data/webkit/e-web-view.js b/data/webkit/e-web-view.js
index 058b4e578c..309cada00f 100644
--- a/data/webkit/e-web-view.js
+++ b/data/webkit/e-web-view.js
@@ -83,6 +83,9 @@ Evo.foreachIFrameDocument = function(doc, traversar_obj, call_also_for_doc, leve
 	iframes = doc.getElementsByTagName("iframe");
 
 	for (ii = 0; ii < iframes.length; ii++) {
+		if (!iframes[ii].contentDocument)
+			continue;
+
 		if (!traversar_obj.exec(iframes[ii].contentDocument, iframes[ii].id, level + 1))
 			return false;