I'm working on a few asp pages that dynamically create a PDF file and

load that PDF file in a new window in the browser.  There's a problem with

the browser's cache though, it doesn't check the date/time from the cached

file when opened in a new window, it just loads what's in the cache.  I

previously alleviated this problem by using the following JavaScript code:



<script language="JavaScript">

var newWin 

window.open("","PDF","width="+(screen.availWidth-10)+",height="+(screen.avai

lHeight-30)+",top=0,left=0"); 

newWin.location.replace('/print/pdf/output/<%=sPDFResult%>') 

</script>



This was working fine, until we tested it on an NT 4.0 Client with Internet

Explorer 4.0, 5.0 or 5.5.  On these machines, it was still reloading the

page from cache.  So, I added the following code:



<script language="JavaScript">

var newWin 

window.open("","PDF","width="+(screen.availWidth-10)+",height="+(screen.avai

lHeight-30)+",top=0,left=0"); 

newWin.location.replace('/print/pdf/output/<%=sPDFResult%>') 

newWin.history.go(0);

</script>



I added the "newWin.history.go(0);" so it would refresh the page

automatically and not use the page in the cache.  This worked great for NT

4.0 with IE 4.0 and 5.0, but on IE 5.5, it brought up a blank page.  I think

it's doing the refresh before it does the location.replace command, thus

refreshing the blank page that was opened.  I tried changing it so the

window.open directly calls the pdf file, then doing the refresh, but that

doesn't work either, still brings up the old page from the cache.



I've also tried creating an .asp page that gets called in window.open with a

querystring parameter of the pdf filename, then doing a JavaScript

location.replace to that filename, but it still loads the old file from the

cache...



Does anybody have any ideas on this one?  I'm stumped...



Thanks!

Shawn Steward

Applied Systems, Inc.