diff --git a/patches/chromium/.patches b/patches/chromium/.patches
index b13ce9d3780..c6a5c9b58ee 100644
--- a/patches/chromium/.patches
+++ b/patches/chromium/.patches
@@ -18,7 +18,6 @@ v8_context_snapshot_generator.patch
 boringssl_build_gn.patch
 pepper_plugin_support.patch
 no_cache_storage_check.patch
-blink_fix_prototype_assert.patch
 gtk_visibility.patch
 sysroot.patch
 mas_blink_no_private_api.patch
diff --git a/patches/chromium/blink_fix_prototype_assert.patch b/patches/chromium/blink_fix_prototype_assert.patch
deleted file mode 100644
index c7c582fcc60..00000000000
--- a/patches/chromium/blink_fix_prototype_assert.patch
+++ /dev/null
@@ -1,29 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Cheng Zhao <zcbenz@gmail.com>
-Date: Thu, 20 Sep 2018 17:48:19 -0700
-Subject: blink_fix_prototype_assert.patch
-
-A recent Chromium change has accidentally added assertion for the case when
-a new window object may not have a prototype attached. In Electron it may
-happen when preventDefault for a native new-window event.
-https://chromium.googlesource.com/chromium/src/+/f47b361887a31cccf42a6e21a82bccf28372bdaa%5E%21
-In the long term we should investigate why it happened, and take a more
-formal fix. But for now I'm just make this assertion silently pass away.
-
-diff --git a/third_party/blink/renderer/platform/bindings/v8_object_constructor.cc b/third_party/blink/renderer/platform/bindings/v8_object_constructor.cc
-index 196548f9b1a817348df05c889b315a8124e1692d..359165f1c52b8afb0d91d4a363da0429cf5372ef 100644
---- a/third_party/blink/renderer/platform/bindings/v8_object_constructor.cc
-+++ b/third_party/blink/renderer/platform/bindings/v8_object_constructor.cc
-@@ -95,8 +95,10 @@ v8::Local<v8::Function> V8ObjectConstructor::CreateInterfaceObject(
-     bool get_prototype_value =
-         interface_object->Get(context, V8AtomicString(isolate, "prototype"))
-             .ToLocal(&prototype_value);
--    CHECK(get_prototype_value);
--    CHECK(prototype_value->IsObject());
-+    // CHECK(get_prototype_value);
-+    // CHECK(prototype_value->IsObject());
-+    if (!get_prototype_value || !prototype_value->IsObject())
-+      return v8::Local<v8::Function>();
- 
-     prototype_object = prototype_value.As<v8::Object>();
-   }