Traceback (most recent call last):
  File "/tmp/koru-real-back.py", line 24, in <module>
    asyncio.run(main())
  File "/opt/codex/runtimes/codex-primary-runtime/dependencies/python/lib/python3.12/asyncio/runners.py", line 195, in run
    return runner.run(main)
           ^^^^^^^^^^^^^^^^
  File "/opt/codex/runtimes/codex-primary-runtime/dependencies/python/lib/python3.12/asyncio/runners.py", line 118, in run
    return self._loop.run_until_complete(task)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/codex/runtimes/codex-primary-runtime/dependencies/python/lib/python3.12/asyncio/base_events.py", line 691, in run_until_complete
    return future.result()
           ^^^^^^^^^^^^^^^
  File "/tmp/koru-real-back.py", line 21, in main
    results['back']=await ev('location.href');assert results['back'].endswith('/index.html'),results
                    ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/tmp/koru-real-back.py", line 8, in ev
    nonlocal n;n+=1;await ws.send(json.dumps({'id':n,'method':'Runtime.evaluate','params':{'expression':expr,'awaitPromise':True,'returnByValue':True}}))
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/codex/runtimes/codex-primary-runtime/dependencies/python/lib/python3.12/site-packages/websockets/asyncio/connection.py", line 478, in send
    async with self.send_context():
               ^^^^^^^^^^^^^^^^^^^
  File "/opt/codex/runtimes/codex-primary-runtime/dependencies/python/lib/python3.12/contextlib.py", line 210, in __aenter__
    return await anext(self.gen)
           ^^^^^^^^^^^^^^^^^^^^^
  File "/opt/codex/runtimes/codex-primary-runtime/dependencies/python/lib/python3.12/site-packages/websockets/asyncio/connection.py", line 965, in send_context
    raise self.protocol.close_exc from original_exc
websockets.exceptions.ConnectionClosedError: no close frame received or sent