Provide a way to disable Fast Refresh and fallback to classic browser reload.

Created by: hoomanaskari

Hi,

Recently upgraded to CRA 4 and it's great so far. Well, almost great. While the new fast refresh works great on our landing pages, it does not work on our core app. The issue is that our core app relies heavily on events and js canvas, and that's where fast refresh does not work well, or at all.

Is there a way to optionally disable the fast refresh and fallback to browser reload on file save/update? I tried adding FAST_REFRESH=false env but it did not work.

Thanks in advance.