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From I-Chung Young <>
Subject Re: cache problem
Date Fri, 29 Sep 2000 17:09:08 GMT

	In's documentation, they mentioned about cache-op
to be sent along with the digest to instruct the device to clear
cache of certain page. It works. But it is a raletively incovenient
scheme (You can clear any cache URL except the current deck) and
it doesn't work with cocoon (I haven't found a way, maybe Prism
will do).

	Basically, the reply will looks like:

Content-type: multipart/mixed; boundary=_abcd_

Content-type: application/x-up-cacheop


Content-type: text/vnd.wap.wml


	You may want to check's Developer's Guide for
more detail.

	Xerces (or Xalan or Cocoon) sorts the attributes also
cuases problem in some other tags in WML.

	Another thing you may want to consider is that there
are many level of cache between client and server. Device itself,
WAP gateway, proxy server, cocoon. You may need combination of
cache control (in HTTP header, WML meta tag forua, and cacheop)
to ensure no cache.

Hope this helps.
I-Chung Young            Email:
Phone: 732-420-1078      B5-2C29, 200 Laurel Ave.
Fax:   732-368-1417      Middletown, NJ 07748

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