Question

I am serving a .aspx that contains Images. I haven’t figured out yet how to force ie7(6) to fetch the images all the time (e.g redirects).

So far, I’ve added the following tags on my .aspx page:

<META Http-Equiv="Cache-Control" Content="no-cache">
<META Http-Equiv="Pragma" Content="no-cache">
<META Http-Equiv="Expires" Content="0"> 

And still, if I click the URL Bar and hit enter or do a redirect to that same page IE won’t re-fetch the images.

What am I missing?

Other Notes:

ISS 5
IE7 7.0.5730.13
Works on Firefox and everywhere else but IE

Redirect Code:

Response.Redirect("url...", true);

Answer 1

You might just put a unique tag on the end of your image URLs to make sure the cache isn’t hit. For example

<img src="/path/to/image.jpg?<%=DateTime.Now.Ticks.ToString()%>" />

Granted, if you’re using WebForms you’ll want to do it a little different, but still along those lines.