While running code in a loop, web workflow is unresponsive to Ctrl+C

[makermelissa]

CircuitPython version

Adafruit CircuitPython 8.2.0-rc.1 on 2023-06-27; Adafruit Feather ESP32-S2 TFT with ESP32S2

Code/REPL

import time

while True:
    print("Hello World!")
    time.sleep(1)

Behavior

Using a Web Workflow serial connection, pressing Ctrl-C does not work as expected. It occasionally works, but not most of the time.

Description

I verified that this works as expected in 8.0.0-beta.6, so it broke along the way. I'm pretty sure it doesn't work in 8.1.0 either. I'm not sure when it stopped working.

Additional information

See circuitpython/web-editor#115 for additional details.

[dhalbert]

Maybe should fix this in 8.2.x.

[tannewt]

I think this was broken by #7836. It adds a catch all break when no new connection is available that skips the websocket_background call.