You need to set not only the "Expires" HTTP header, but the "Cache-control=no-cache" and Pragma=no-cache" also.
Teddy, Teddy's Center: http://teddy.fcc.ro/ Email: [EMAIL PROTECTED] ----- Original Message ----- From: "Peter Fleck" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, July 22, 2003 1:05 AM Subject: Clearing a Form I have a cgi that creates a form and then receives the output of the form and sends it to a mysql database. It also displays the form information as a preview of what is getting sent to the database. You can return to the original form with data if you need to correct something via an 'Edit' button. This button also makes sure that nothing gets stored in the database (by deleting the data that was just sent and I know there must be a better way to do that part but it's not my current question). If the visitor uses the browser 'Back' button to return to the form, their data will be there but the record won't get deleted from the database. How do I erase all the data from the form if the visitor chooses to use the Back button? I tried the CGI.pm method mentioned in O'Reilly's CGI Programming: print $dataIn->header( -type => "text/html", -expires => "now"); but that doesn't do it. I'm wondering if javascript is the answer? Thanks. -- Peter Fleck Webmaster | University of Minnesota Cancer Center Dinnaken Office Bldg. 925 Delaware St. SE Minneapolis, MN 55414 612-625-8668 | [EMAIL PROTECTED] | www.cancer.umn.edu Campus Mail: MMC 806 -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
