The progress bar does not auto-update when the network error occured and then restored

It seems the progress bar will not update anymore when it encountered a network Error.
For example, when I flap the network, the progress bar will stop updating forever.
I also tried to install celery-progress[websockets,redis] instead of celery-progress, but it still does not work.
Do you have any good idea to make the progress bar auto-update when the network is restored?

Start by reproducing the issue while flapping the network during an active progress update, with the standard package and the websockets/redis extras. Trace the progress bar's client-side update and reconnection path after the network error; done means updates resume automatically when connectivity is restored.

Written by the indexing model from the issue text.