“CAUTION: provisional headers are shown” in Chrome debugger

Question

I noticed a strange caution message when looking at downloaded resources using Google chrome inspector (F12):

Caution provisional headers a

Answer 1

I ran this issue when I tried to load main.js for require js for the second time after I made changes as a result from error . I just turned on in Developer Tools Settings "Disable Cache (When DevTools is Open)" . and that did the charm.