Resposta inesperada - o servidor aceitou a solicitação de atualização, mas especificou o subprotocolo '<var>X</var>' quando nenhum subprotocolo foi solicitado.

Message in Portuguese (Brazil) (Português (Brasil))

Unlocalized message

Unexpected response - the server accepted the upgrade request but specified the subprotocol '<var>X</var>' when no subprotocol was requested.

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