After many hours of investigation on the problem we were having we
appear to have found a solution. After getting the Rewrite Rules to
Proxy we found that some pages wouldn't return expected results and some
forms wouldn't submit because buttons on those forms weren't recognized.
At first we suspected that Rewrite might be truncating requests. After a
lot of http tracing we found that rewrite was sending the full requests
but breaking them up into multiple submissions and that there was enough
of a delay imposed between requests that our ITK web server wasn't
getting the full request (Remember, that this system serves Active4D
pages + old Netlink Style pages and the problem was with the latter).
Browser requests sent straight into our system on port 8080 didn't have
this problem.

By increasing the timeout in the ITK_TCPRcv we were able to handle this.

With that solved I have another question. When proxying to 4D or 4D
Client one would always hope the 4D/4D Client was available to accept
the proxy. When using Rewrite we've found that if 4D is not available
the user gets a blank page back. I doubt it is possible but has anyone
worked around this so that an informational page could be displayed if
this happens?

-- Brad Perkins

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