From b3c45149020d3af76a42e7e8b910583e9dcdb1e1 Mon Sep 17 00:00:00 2001
From: Andreas Kling <kling@serenityos.org>
Date: Sat, 4 Apr 2020 14:17:39 +0200
Subject: [PATCH] LibWeb: Don't call an absent error callback in load_sync()

Make ResourceLoader::load_sync() match load() in checking if the
error_callback is null before actually calling it.

Fixes #1623.
---
 Libraries/LibWeb/ResourceLoader.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Libraries/LibWeb/ResourceLoader.cpp b/Libraries/LibWeb/ResourceLoader.cpp
index 47fa1741ee..c6b1aac24c 100644
--- a/Libraries/LibWeb/ResourceLoader.cpp
+++ b/Libraries/LibWeb/ResourceLoader.cpp
@@ -57,7 +57,8 @@ void ResourceLoader::load_sync(const URL& url, Function<void(const ByteBuffer&)>
             loop.quit(0);
         },
         [&](auto& string) {
-            error_callback(string);
+            if (error_callback)
+                error_callback(string);
             loop.quit(0);
         });