AppHarbor ws response: HTTP/1.1 200 OK Server: nginx Date: Mon, 30 Aug 2021 23:57:37 GMT Content-Type: text/html Content-Length: 612 Last-Modified: Tue, 18 Jun 2019 00:55:25 GMT Connection: keep-alive ETag: "5d08367d-264" Accept-Ranges: bytes Welcome to nginx!

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Localhost ws response: HTTP/1.1 101 Switching Protocols User-Agent: WebSocket Server Connection: Upgrade Upgrade: webSocket Sec-WebSocket-Origin: http://localhost Sec-WebSocket-Location: ws://localhost/computer Sec-WebSocket-Accept: y/ay9BG3Kio3mWJPHnxsLQ07/BI=