Archive of UserLand's first discussion group, started October 5, 1998.

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Re: Version numbers

Author:	Pete Jansson
Posted:	2/16/1999; 6:53:34 AM
Topic:	Defeating the browser's cache
Msg #:	2921 (In response to 2920)
Prev/Next:	2920 / 2922

When AOLserver allows web-form-based editing of Tcl scripts, it embeds the timestamp with which the Tcl script was last modified as a hidden field in the form you use to edit. The first thing the editor/submit script does is to check the hidden field last-modified date against the file last-modified date, and if the file is later, it returns an error to the user asking them to refresh their edit form. If your home page edit form included this, it would prevent the errors you're talking about, although setting the Expires header is important, too.

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