I have IIS with URL Rewrites acting as a reverse proxy to Apache Tomcat.

example.com/app/ redirects to example.com:8080/app/. Port 80 redirects to port 8080 on the same server.

If I go to example.com/app/ it works as expected. However, if I go to example.com/app (without the trailing slash), it results in a 404 error.

The pattern I'm matching for the Inbound Rule is ^app/(.*). Then the action rewrites to the URL{R:1}.

Any suggestions on how to get this to work without the trailing slash?


I had a similar issue and manage to fix it by creating two rules

  1. 301 Redirect

search pattern: ^app$

redirect URL: app/

  1. rewrite

search pattern: ^app/(.*)

rewrite URL:{R:1}


To elaborate on Thomas's answer, here is the config file after the rules have been created:

<?xml version="1.0" encoding="UTF-8"?>
                <clear />
                <rule name="ReverseProxyInboundRule2" stopProcessing="true">
                    <match url="^app$" />
                    <conditions logicalGrouping="MatchAll" trackAllCaptures="false" />
                    <action type="Redirect" url="app/" />
                <rule name="ReverseProxyInboundRule1" stopProcessing="true">
                    <match url="(.*)" />
                    <conditions logicalGrouping="MatchAll" trackAllCaptures="false" />
                    <action type="Rewrite" url="http://localhost:8080/{R:1}" />

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