Supported Environments - websvr forward to appsvr and changes url

The Supported Environments documentation page 
(http://getahead.ltd.uk/dwr/browser/environment) states that...

"In version 1.0 we only know of 2 environments where DWR may cause problems. 
DWR fails when your appserver is fronted by a webserver that alters URLs in 
a way that the appserver is not expecting and there may be some issues 
running with DWR in Vignette portal."

This webserver/appserver relationship is exactly how my environment is 
setup.  For example requests to the webserver are in the form 
http://<domain>/a/b/ and this forwards to the application server where 
requests are in the format http://<domain/b/.  Since I saw that note on the 
documentation page, I upgraded my DWR to version 2.0, but this alone did not 
solve my problem.

The problem is that the POSTs on the webserver look like /b/ when it should 
be /a/b/.  Of course everything works fine when you access the appserver 
directly.

Is this type of configuration supported and if so, any tips on how I can 
configure my DWR setup to work within this environment?

Thank you, FrenchFry

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