Don't Reverse Proxy a Subdirectory

Assume you have a reversed web server via apache mod_proxy, there might be subdirectories which you don't want to reverse (such as internal Web Services), you can use ! directive like this:

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<VirtualHost *:80>
    ServerName www.example.com

    ProxyPass /webservice !

    ProxyPass / http://10.1.1.100/
    ProxyPassReverse / http://10.1.1.100/
</VirtualHost>
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It's important to have ! directive before the actual ProxyPass direct.