To see the internals of what you have built, open the Chrome developer tools (
| More tools | Developer tools or Opt + Cmd + I):
Go to the Network tab and reload the page; you should see the echo.websocket.orl WebSocket, as seen in the screenshot. Write something and messages will appear in the frame tab, like so:
The green messages are sent from you while the white messages are the ones you receive. You can also examine the message ...
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