esp32 Websocket server error when connecting from chrome browser client

[espruino-discuss3]

Posted at 2018-11-24 by mike_k

I'm using the exact example here on port 3030 to create a websocket server on an esp32 and when I attempt to connect to the server via a Chrome browser client I receive the error below:

The js code used in Chrome is extremely simple:

new WebSocket('ws://192.168.4.1:3030')

The weird part is the callback for when a websocket connection opens is called on the espruino websocket server:

server.on('websocket', function(ws){
  console.log('websocket opened!');
});

but right after, Chrome throws the error shown in the image above, and I'm not able to send or receive messages.

The current espruino version info is:

{
  VERSION: "2v00.42",
  GIT_COMMIT: "1a1fd36",
  BOARD: "ESP32",
  FLASH: 0, RAM: 524288,
  CONSOLE: "Serial1",
  EXPTR: 1073483756
}

Thank you in advance!

[espruino-discuss3]

Posted at 2018-11-24 by mike_k

Also, I've used the same code on both the an official espruino board and an esp8266 without Chrome throwing any error. (For reference). Thank you!