CloudFront usually misses from browser, hits from cURL

Question

When I load my HTML page in my browser, all requests for assets have x-cache: Miss from cloudfront. If I reload my browser very quickly, I can sometimes get a Hit.

If I open my developer tools and "copy request as curl", I reliably get a hit, no matter how fast or slowly I perform the requests.

Why would different user agents making the exact same request get a hit or miss?

Hey, it would be helpful if you could also add the behaviour settings for your route in the question. — Piyush Baderia, Apr 19 '19 at 20:46

score 0 · Answer 1 · edited May 11 '22 at 15:33

0

Probably you are fowarding the cookies on Cloudfront.

So every time you refresh the page in a browser, the browser creates a new cookie hash and the CDN thinks it's a new request.

You have to turn off cookie fowarding at Cloudfront.

To replicate this behaviour in CURL try sending the request with a different cookie and you will see it slowing down.

edited May 11 '22 at 15:33

Daniel K

649
1
4
16

answered May 03 '22 at 15:24

Diogo Menezes

1

CloudFront usually misses from browser, hits from cURL

1 Answers1