mlibbey opened a new issue, #9087: URL: https://github.com/apache/trafficserver/issues/9087
https://www.rfc-editor.org/rfc/rfc7234#section-5.4 says > The "Pragma" header field allows backwards compatibility with > HTTP/1.0 caches, so that clients can specify a "no-cache" request > that they will understand (as Cache-Control was not defined until > HTTP/1.1). **When the Cache-Control header field is also present and > understood in a request, Pragma is ignored**. https://www.rfc-editor.org/rfc/rfc9111#name-pragma deprecates pragma completely. ATS 9 is using the pragma: no-cache instead of cache-control value. here's an httpbin example remap http://myhttpbin.com http://httpbin.org ``` # first make a request that will get both pragma and CC. This should result in a cached object $ curl -s -IXGET --resolve myhttpbin.com:80:${ip} "http://myhttpbin.com/response-headers?Cache-Control=max-age=5,public&pragma=no-cache"; HTTP/1.1 200 OK Date: Mon, 12 Sep 2022 22:17:26 GMT Content-Type: application/json Content-Length: 134 pragma: no-cache Cache-Control: max-age=5,public Access-Control-Allow-Origin: * Access-Control-Allow-Credentials: true X-B3-TraceId: bc05ab94a40fce28 Strict-Transport-Security: max-age=31536000 Age: 0 Via: https/1.1 myservername [uScMsSf pSeN:t cCMpSs ]) Connection: close $ curl -s -IXGET --resolve myhttpbin.com:80:${ip} "http://myhttpbin.com/response-headers?Cache-Control=max-age=50,public&pragma=no-cache"; -H"Cache-Control:only-if-cached" HTTP/1.1 200 OK Date: Mon, 12 Sep 2022 22:17:57 GMT Content-Type: application/json Content-Length: 134 pragma: no-cache Cache-Control: max-age=50,public Access-Control-Allow-Origin: * Access-Control-Allow-Credentials: true X-B3-TraceId: 2e2f1fafa14608af Strict-Transport-Security: max-age=31536000 Age: 0 Via: https/1.1 myservername [uScMsSf pSeN:t cCMpSs ]) Connection: close ``` vs ``` $ curl -s -IXGET --resolve myhttpbin.com:80:${ip} "http://myhttpbin.com/response-headers?Cache-Control=max-age=50,public"; HTTP/1.1 200 OK Date: Tue, 13 Sep 2022 00:23:47 GMT Content-Type: application/json Content-Length: 110 Cache-Control: max-age=50,public Access-Control-Allow-Origin: * Access-Control-Allow-Credentials: true X-B3-TraceId: 4e06a0af546d48ba Strict-Transport-Security: max-age=31536000 Age: 5 Via: https/1.1 myservername Connection: close $ curl -s -IXGET --resolve myhttpbin.com:80:${ip} "http://myhttpbin.com/response-headers?Cache-Control=max-age=50,public"; -H"Cache-Control:only-if-cached" HTTP/1.1 200 OK Date: Tue, 13 Sep 2022 00:23:47 GMT Content-Type: application/json Content-Length: 110 Cache-Control: max-age=50,public Access-Control-Allow-Origin: * Access-Control-Allow-Credentials: true X-B3-TraceId: 4e06a0af546d48ba Strict-Transport-Security: max-age=31536000 Age: 30 Via: myservername Connection: close ``` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
