Apache RewriteRule on IRIS

Hi,

I'm attempting to set up an Apache Rewrite Rule so that a url picks up a different csp page.

For example I want Apache http://hostname/csp/test/foo.csp to redirect to http://hostname/csp/test/bar.csp

Here is my example of Cache80.conf

<IfModule mod_ssl.c>
<VirtualHost _default_:80>
    ServerName test.domain.com
    DocumentRoot "/intersystems/irissys/csp"
    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined
    LogLevel info
    <Directory /intersystems/irissys/csp/test>
        Options Indexes FollowSymLinks MultiViews
        AllowOverride All
        Require all granted
        RewriteEngine On
        RewriteRule "^/foo\.csp" "/bar.csp" [PT]
    </Directory>
    <Location />
        CSP On
        SetHandler csp-handler-sa
    </Location>
    <Location "/csp/bin/Systems/">
        SetHandler csp-handler-sa
    </Location>
    <Location "/csp/bin/RunTime/">
        SetHandler csp-handler-sa
    </Location>
    DirectoryIndex  index.csp index.html index.htm
</VirtualHost>
</IfModule>

Unfortunately when I load http://hostname/csp/test/foo.csp in a browser, foo.csp loads instead of the desired bar.csp.

I've tried all sorts of variations of the rule to include directories but nothing I've tried seems to work.

Does anyone have idea what I may be doing wrong please?