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Tip of the Day
Language: Web
Expertise: All
Apr 15, 1999

Prevent Browsers From Caching ASP Pages

Whenever you are programming in Active Server Pages, make sure that your browser is set to check for a new page every time. Otherwise, you may not see your latest changes. To ensure that visitors see the latest version of an HTML page that is created on the fly, expire the page and make sure to tell the browser not to cache it. Here's some ASP code to include at the very start of your script:
 
<%
Response.Expires=0
Response.AddHeader "pragma","no-cache"
%>
Keep in mind that caching isn't always bad--it reduces the load on your Web server when used for pages that don't change often.
Ken Cox
 
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