minor fix

index.html

@@ -616,4 +616,4 @@ label {
         transform: rotate(360deg);
     }
 }
-</style>
+</style>

main.py

@@ -541,7 +541,7 @@ async def handler(request: ws.WebSocketRequest):
                 message = await connection.get_message()
                 inbox.put(message)
             except Exception as e:
-                tell('Receiver', e, level=0)
+                inbox.shutdown(immediate=True)
                 break
 
     async def sender():
@@ -550,16 +550,13 @@ async def handler(request: ws.WebSocketRequest):
                 message = await trio.to_thread.run_sync(outbox.get)
                 await connection.send_message(str(message))
             except Exception as e:
-                tell('Sender', e, level=0)
+                outbox.shutdown(immediate=True)
                 break
 
     async with trio.open_nursery() as nursery:
         nursery.start_soon(receiver)
         nursery.start_soon(sender)
 
-    outbox.shutdown(immediate=True)
-    inbox.shutdown(immediate=True)
-
 async def backend(listen='127.0.0.1', port=0):
     global server
     listeners = await trio.open_tcp_listeners(port, host=listen)