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Browser related issue

Rahul Mahindrakar
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Posts: 1869
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I was checking up caching of images in the browser when I noticed the following

75302HTTPwww.google.com/0private text/html
76200HTTPwww.google.fi/1 860private text/html; charset=UTF-8
77200HTTPwww.google.fi/intl/en_com/images/logo_plain.png8 072Expires: Mon, 18 Jan 2038 15:49:47 GMTimage/png

78200HTTPwww.google.fi/1 862private text/html; charset=UTF-8
79304HTTPwww.google.fi/intl/en_com/images/logo_plain.png0Expires: Mon, 18 Jan 2038 15:51:57 GMT

The issue is that when I clear my IE cache and go to google.com then the image logo_plain.png is downloaded as shown in the body column.

The second time I access google.com then the image is not downloaded however a http request is sent and the response 304 is received.

Now my question is

According to the document over here section "Cache-Related Response Headers"

"As you can see, we've improved performance by adding an Expires header, since no conditional HTTP request is made during Session #2."

It says that the browser should not make a conditional Get request if the Expires exist. However in the above case it does so. Does it mean a bug somewhere ( in IE) or is there something else that I did not understand.
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