IE cannot download foo.jsf. IE was not able to open this internet site. The requested site is either unavailable or cannot be found

Question

I\'m providing a file download (usually CSV or PDF) in my JSF web application on a HTTPS (SSL) host. It works fine in most browsers, only IE7/8 gives the following error:

Answer 1

This is a typical MSIE error message when a download is been provided over HTTPS (SSL) while the response headers are been set to disable the browser cache via no-cache. This issue is not related to JSF.

You need to relax the response headers which have influence on the browser cache. It should not contain the no-cache instruction. You could set it to public, private or no-store.

response.setHeader("Cache-Control", "public");
response.setHeader("Pragma", "public");

See also MS KB Q316431.

Additionally, if you happen to run on WebSphere Application Server, then add the below header as well in order to prevent it from overriding the Cache-Control header afterwards:

response.setHeader("CookiesConfigureNoCache", "false");             

See also IE cannot download files over SSL served by WebSphere.