“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 doubt my answer is in time to help you but others might find it helpful. I experienced a similar issue with a jQuery Ajax Post script that i created.

It turned out that i had a typo in the href attribute of the A tag that i was using to fire the post. I had typed href="javacsript:;" (reversing the 's' and the 'c' ).. this caused the script to try to refresh the page while the post was attempting to fire. corrected the typo and it worked perfectly fine for me.