?
Solved

How can I ensure a .aspx page is NOT loaded from cache?

Posted on 2012-04-02
4
Medium Priority
?
252 Views
Last Modified: 2012-06-27
I have a webpage that will return wrong information if the image is pulled from cache.  Is there a way to make sure that my .aspx page is NOT served up from the browsers cache?
0
Comment
Question by:tprofits
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
4 Comments
 
LVL 7

Accepted Solution

by:
whosbetterthanme earned 2000 total points
ID: 37798211
There are a few tricks to this, and none of them are completely bullet proof but here are some things to try:

'on the server side
<% Response.CacheControl = "no-cache" %>
 <% Response.AddHeader "Pragma", "no-cache" %>
<% Response.Expires = -1 %>

'On the client side
<META HTTP-EQUIV="CACHE-CONTROL" CONTENT="NO-CACHE">
<META HTTP-EQUIV="PRAGMA" CONTENT="NO-CACHE">
<META HTTP-EQUIV="Expires" CONTENT="-1">
<meta http-equiv="refresh" content="60" />

Also, another trick others use is to attach a bogus dynamic parameter to the URL such as:

Response.Write("http://myurl.com/myscript.aspx?id=" & now())

This way everytime the url is written, it's different.
0
 

Author Comment

by:tprofits
ID: 37798302
I will try this in a few hours.  Thank you!
0
 
LVL 5

Expert Comment

by:Vishal Kedar
ID: 37800251
Add below page directive

<%@ OutputCache Duration="60" VaryByParam="None" %>
0
 

Author Closing Comment

by:tprofits
ID: 37804502
I used Response.Write("http://myurl.com/myscript.aspx?id=" & now()).  Worked nicely.  Thanks!
0

Featured Post

Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I recently went through the process of creating a Calendar Control of events with the basis of using a database to keep track of the dates that are selectable, one requirement was to have the selected date pop-up in a simple lightbox.  At first this…
This demonstration started out as a follow up to some recently posted questions on the subject of logging in: http://www.experts-exchange.com/Programming/Languages/Scripting/JavaScript/Q_28634665.html and http://www.experts-exchange.com/Programming/…
If you’ve ever visited a web page and noticed a cool font that you really liked the look of, but couldn’t figure out which font it was so that you could use it for your own work, then this video is for you! In this Micro Tutorial, you'll learn yo…
Do you want to know how to make a graph with Microsoft Access? First, create a query with the data for the chart. Then make a blank form and add a chart control. This video also shows how to change what data is displayed on the graph as well as form…

777 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question