Home/ Questions/Q 454575
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-12T22:17:04+00:00

I have an HttpHandler (have also done this as an ASPX page) that retrieves

  • 0

I have an HttpHandler (have also done this as an ASPX page) that retrieves an image stored in the db and writes it out to the response. I have added the following lines to the code to try and get the images to cache in the browser, but whenever I look at the response in Firebug, it always has a cache-control header value of “private”.

Response.Cache.SetCacheability(HttpCacheability.Public)

I’ve tried all sorts of things, like using the Response.ClearHeaders & Response.AddHeader() to manually add the “Cache-Control” header value, but to no avail. Any ideas?

Edit:
More info: This is running in an HTTP Handler (.ashx), and I have tested it both on my local IIS 5.1, and on the hosting site which I think is IIS 6.

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Does the page by any chance require authentication? The runtime will force Cache-Control: private on pages that require authentication to prevent the accidental caching of private content on public proxies.

    Are you using Cassini? If so, it always forces Cache-Control: private. If so, you might try switching to IIS instead.

    • 0