How to use the lastContentURL processor??

I suppose lastContentURL will give the last content, that was displayed.
I created a portal web app, and in the default portal webflow, there is a "lastContentURL"
processor. I added my own presentaion nodes in a different namespace(say "usercreation")
and on a cancel event of a node in usercreation namespace, i mapped a transition
to "lastContentURL" of the default namespace "portal" - expecting that it will
show me the last state of portal, from where i browsed in to the usercreation
flow... it didnt work, and it threw on my face a "404 page not found" .. what
is this lastContentURL stuff? plz help

>
I want to use SaxonHE9.4.0.3 processor
>
Michael Kay provides extensive Installation instructions for all of his products. They are included in the documentation download.
Here is just a small part of what was provided for the version I use
>
Installation of Saxon simply involves unzipping the supplied download file into a suitable directory. The procedure is the same for the Standard product and the Schema-Aware product. The two products can co-exist in the same directory or in different directories.
One of the files that will be created in this directory is the principal JAR file. This is saxon8.jar in the case of Saxon-B, saxon8sa.jar in the case of Saxon-SA. There are additional JAR files to support optional features including the JDOM interface and the SQL interface. When running Saxon, the principal JAR file should be on the class path. The class path is normally represented by an environment variable named CLASSPATH: see your Java documentation for details. Note that the JAR file itself (not the directory that contains it) should be named on the class path.

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