From e11f75b8fc29afb1e9006941ee44978eef76c151 Mon Sep 17 00:00:00 2001
From: Chris Nollstadt <cnollstadt@hi-iq.com>
Date: Tue, 10 Jun 2025 19:10:56 -0400
Subject: [PATCH] Emit deadlock under heavy load from asp.net due to missing
 synch. context negation (ConfigureAwait(false)) #400

---
 .../Transport/WebSockets/WebSocketTransport.cs            | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/SocketIOClient/Transport/WebSockets/WebSocketTransport.cs b/src/SocketIOClient/Transport/WebSockets/WebSocketTransport.cs
index 017de71d..8db7e8f4 100644
--- a/src/SocketIOClient/Transport/WebSockets/WebSocketTransport.cs
+++ b/src/SocketIOClient/Transport/WebSockets/WebSocketTransport.cs
@@ -165,7 +165,13 @@ public override async Task SendAsync(IList<SerializedItem> items, CancellationTo
                 if (items[0].Type == SerializedMessageType.Text)
                 {
                     var bytes = Encoding.UTF8.GetBytes(items[0].Text);
-                    await SendAsync(TransportMessageType.Text, bytes, cancellationToken);
+
+                    ///// This causes deadlock on _sendLock.WaitAsync above
+                    //await SendAsync(TransportMessageType.Text, bytes, cancellationToken);
+                    /////// Should be
+                    await SendAsync(TransportMessageType.Text, bytes, cancellationToken).ConfigureAwait(false);
+                    ///////
+
                     Debug.WriteLine($"[WebSocket⬆] {items[0].Text}");
                 }