我必须做些什么才能使通过HTTPS提供的图像等内容在客户端缓存？

I am using Tomcat as a server and Internet Explorer 6 as a browser. A web page in our app has about 75 images. We are using SSL. It seems to be very slow at loading all the content. How can I configure Tomcat so that IE caches the images?I am using Tomcat as a server and Internet Expl