[debugger] "Debugging connection was closed. Reason: WebSocket disconnected"

I’m running into a problem with starting up the Chrome debugger. Copying and pasting Glitch’s debugger URL into Chrome starts up DevTools but does not connect to Glitch; it instead shows a dialog saying: “Debugging connection was closed. Reason: WebSocket disconnected”. I have no browser extensions currently enabled.

I looked at a related thread with some similar errors but found no solutions.

My project name is wakeful-canoe. Thanks to anyone who can help.