What can I do if I want to catch jpg,png in explorer (in test only catch js and css) when you have a different server for static content?, look at the test in explorer:
http://www.webpagetest.org/result/120314_DX_3K318/
and now in chrome:
http://www.webpagetest.org/result/120314_ZM_3K35V/
Every time I browse the website, load again the images in explorer, in chrome doesn’t happen.
From Google Page Speed
[quote]Set the Vary header correctly for Internet Explorer.
Internet Explorer does not cache any resources that are served with the Vary header and any fields but Accept-Encoding and User-Agent. To ensure these resources are cached by IE, make sure to strip out any other fields from the Vary header, or remove the Vary header altogether if possible
[/quote]
Thanks!!!