Solved

upload file caching problem

Posted on 2004-10-18
2
180 Views
Last Modified: 2010-04-01
the new upload picture file does not display until i refresh the page. I believe this is a caching problem. So i added the following statements to prevent browser caching. But it didn't work. Is this a caching problem or something else? If this is a caching problem, how can i solve it?

 <%
response.setHeader( "Cache-Control", "no-cache" );
response.setHeader( "Pragma", "no-cache" );
response.setIntHeader( "Expires", 0 );

%>
0
Comment
Question by:jeff1919
  • 2
2 Comments
 
LVL 2

Accepted Solution

by:
siliconeagle earned 250 total points
ID: 12348340
you can add a date to the end if the image url to prevent image caching e.g:-
<img src="img.gif?<%= (new Date()).getTime() %>" />

is it the old image you see, or just no image?
if it's no image have you closed the file after writing it, maybe the webserver cannot read the file as it's open for writing.
0
 
LVL 2

Expert Comment

by:siliconeagle
ID: 12349193
some more headers to try are:-


// always modified
response.setHeader( "Last-Modified",""+(new Date()));
 
// HTTP/1.1
response.setHeader( "Cache-Control","no-store, no-cache, must-revalidate");
response.setHeader("Cache-Control","post-check=0, pre-check=0");
0

Featured Post

Free Tool: Postgres Monitoring System

A PHP and Perl based system to collect and display usage statistics from PostgreSQL databases.

One of a set of tools we are providing to everyone 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

Suggested Solutions

Title # Comments Views Activity
how to exclude a file using regex 5 122
How to set default webapp for host 6 47
struts spring hibernate example 12 132
jsp insert to database example 2 47
This article explains the steps required to use the default Photos screensaver to display branding/corporate images
With User Account Control (UAC) enabled in Windows 7, one needs to open an elevated Command Prompt in order to run scripts under administrative privileges. Although the elevated Command Prompt accomplishes the task, the question How to run as script…
This video shows how to use Hyena, from SystemTools Software, to bulk import 100 user accounts from an external text file. View in 1080p for best video quality.
Established in 1997, Technology Architects has become one of the most reputable technology solutions companies in the country. TA have been providing businesses with cost effective state-of-the-art solutions and unparalleled service that is designed…

827 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