Difference between Pragma and Cache-Control headers?

by

Pragma is the HTTP/1.0 implementation and cache-control is the HTTP/1.1 implementation of the same concept. They both are meant to prevent the client from caching the response. Older clients may not support HTTP/1.1 which is why that header is still in use.

More Related Contents:

  1. Uses of content-disposition in an HTTP response header
  2. What HTTP response headers are required
  3. application/x-www-form-urlencoded or multipart/form-data?
  4. How are parameters sent in an HTTP POST request?
  5. Are HTTP headers case-sensitive?
  6. Maximum on HTTP header values?
  7. Custom HTTP headers : naming conventions
  8. What’s the difference between Cache-Control: max-age=0 and no-cache?
  9. Detecting the character encoding of an HTTP POST request
  10. HTTP GET in VBS
  11. HTTP Range header
  12. How can I get the clients IP address from HTTP headers?
  13. Where can I find the default timeout settings for all browsers?
  14. Content-Length header with HEAD requests?
  15. Why can’t browser send gzip request?
  16. Why is Cache-Control attribute sent in request header (client to server)?
  17. How to forward headers on HTTP redirect
  18. How does “304 Not Modified” work exactly?
  19. How big can a user agent string get?
  20. What is Cache-Control: private?
  21. Standard for adding multiple values of a single HTTP Header to a request or response
  22. How can I find out whether a server supports the Range header?
  23. Setting HTTP headers
  24. what characters are allowed in HTTP header values?
  25. What is the http-header “X-XSS-Protection”?
  26. What is HTTP “Host” header?
  27. How to evaluate http response codes from bash/shell script?
  28. What is the proper HTTP response to send for requests that require SSL/TLS
  29. What to do with errors when streaming the body of an Http request
  30. S3: How to do a partial read / seek without downloading the complete file?

Leave a Comment