fix: this was actually quite a big footgun

server/src/main.rs

@@ -168,7 +168,7 @@ async fn accept_websocket_connection(stream: TcpStream) -> Result<()> {
 
     info!("New WebSocket connection: {}", addr);
 
-    let domain = get_random_domain().await;
+    let domain = get_random_domain().await.to_lowercase();
 
     ws_stream
         .send(ClientboundControlMessage::DomainAssigned(domain.clone()).into())
@@ -366,7 +366,7 @@ async fn accept_minecraft_connection(mut stream: TcpStream) -> Result<()> {
     let handshake = Handshake::new(&packet?).await?;
     info!("Minecraft client {} is connecting to {}", addr, handshake.server_address);
     let map = ROUTING_MAP.read().await;
-    if let Some(sender) = map.get(&handshake.server_address).cloned() {
+    if let Some(sender) = map.get(&handshake.server_address.to_lowercase()).cloned() {
         drop(map);
         let mut handle: ChannelHandle = ChannelHandle::new(&sender, addr).await?;
         let mut buf = vec![];