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<DIV><FONT face=Arial size=2>Hi All,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I have run into a little problem to which I cannot
seem to find a good solution; Whenever I try to access our chameleon sites
on our public server, our browser goes through the proxy-server. For some
reason, this proxy gets extremely slow after a number of visits have been
made. After the proxy server is cleared (all cached documents gone), it's very
fast again. But within a few days, it's all clogged up. Unfortunately, one of
our clients seems to be experiencing similar problems; their proxy server seems
fed up with chameleon pages/images, because access to our server is getting much
slower.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I think it is related to how the documents are
cached. I am no expert at all, but I suspect it uses a hashing algorithm, which
degenerates to a sequential search for URL's that are very similar and would
return a similar result from the hashing algorithm. Is that what's going wrong?
The problem shows up particularly for UpdateMap.php, after using javascript to
nagivate (without submitting the page, in CWC 1.0.4). Each request to this
file takes 4 seconds or more (on a LAN), making javascript navigation slower
than submitting.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I got tags in my template to supposedly prevent
caching:</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2><META HTTP-EQUIV="Expires"
CONTENT="0"><BR><meta http-equiv="pragma"
content="no-cache"></FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>But no effect. I've also tried to put an extra
random string as the first parameter for UpdateMap.php (in case it hashes on the
first part of the url string), but it didn't have any effect at
all.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Has anyone else run into this, or does anyone know
more about this? I'd appreciate any tricks anyone can give me.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>regards,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Jacob</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>P.S. sorry about asking questions about the 'older'
version, but I haven't got javascript navigation working yet in
1.99.</FONT><FONT face=Arial size=2></FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>JACOB DELFOS<BR>SPATIAL INFORMATION
ANALYST<BR>Maunsell Australia Pty Ltd<BR>629 Newcastle Street, WA 6007<BR>PO Box
81, WA 6902<BR>Leederville <BR>Western Australia<BR>ABN 20 093 846
925</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Tel + 61 8 9281
6185<BR>Fax + 61 8 9281 6297<BR><A
href="mailto:jacob.delfos@maunsell.com">jacob.delfos@maunsell.com</A></FONT></DIV></BODY></HTML>