From d824d077844357b74cdf743d80955560b2022d8f Mon Sep 17 00:00:00 2001
From: Matthew Olsson <matthewcolsson@gmail.com>
Date: Sun, 16 Apr 2023 17:40:17 -0700
Subject: [PATCH] LibWeb: Fix inverted condition in WritableStream's
 constructor

---
 Userland/Libraries/LibWeb/Streams/WritableStream.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Userland/Libraries/LibWeb/Streams/WritableStream.cpp b/Userland/Libraries/LibWeb/Streams/WritableStream.cpp
index 83e385a222..76449faf7a 100644
--- a/Userland/Libraries/LibWeb/Streams/WritableStream.cpp
+++ b/Userland/Libraries/LibWeb/Streams/WritableStream.cpp
@@ -30,7 +30,7 @@ WebIDL::ExceptionOr<JS::NonnullGCPtr<WritableStream>> WritableStream::construct_
     auto underlying_sink_dict = TRY(UnderlyingSink::from_value(vm, underlying_sink));
 
     // 3. If underlyingSinkDict["type"] exists, throw a RangeError exception.
-    if (!underlying_sink_dict.type.has_value())
+    if (underlying_sink_dict.type.has_value())
         return WebIDL::SimpleException { WebIDL::SimpleExceptionType::RangeError, "Invalid use of reserved key 'type'"sv };
 
     // 4. Perform ! InitializeWritableStream(this).