SharePoint Application Request Router

web.config

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <system.webServer>
        <rewrite>
            <rules>
                <rule name="ReverseProxyInboundRule1" enabled="true" stopProcessing="true">
                    <match url="(.*)" />
                    <conditions trackAllCaptures="true">
                        <add input="{CACHE_URL}" pattern="^(https?)://" />
                        <add input="{HTTP_HOST}" pattern="^(.*sharepoint.*|.*msocdn.*)" />
                    </conditions>
                    <action type="Rewrite" url="{C:1}://{C:2}/{R:1}" />
                </rule>
            </rules>
        </rewrite>
        <urlCompression doStaticCompression="true" doDynamicCompression="true" />
        <defaultDocument enabled="false" />
    </system.webServer>
</configuration>