ion_auth adds unnecessary index.php in HTTP location
===

Recently setup ion_auth in my CI project. Everything is working well for the most part. However, when the user logs out of the web site, they are redirected to 

> http://*website*/index.php/auth/login

instead of the expected

> http://*website*/auth/login

 location. This causes an issue upon signing in as the location given after login is 

> http://*website*/index.php/*website*

 which is an invalid location.

The server is IIS7 and not Apache. Using the configuration below in the web.config at the root of the site:

    <system.webServer>
        <directoryBrowse enabled="true" />
        <defaultDocument>
            <files>
                <add value="index.php" />
            </files>
        </defaultDocument> 
        <rewrite>
            <rules>
                <rule name="Imported Rule 1" stopProcessing="true">
                    <match url="^(.*)" ignoreCase="false" />
                    <conditions logicalGrouping="MatchAny">
                        <add input="{QUERY_STRING}" pattern="base64_encode.*\(.*\)" ignoreCase="false" />
                        <add input="{QUERY_STRING}" pattern="(\&lt;|%3C).*script.*(\>|%3E)" />
                        <add input="{QUERY_STRING}" pattern="GLOBALS(=|\[|\%[0-9A-Z]{0,2})" ignoreCase="false" />
                        <add input="{QUERY_STRING}" pattern="_REQUEST(=|\[|\%[0-9A-Z]{0,2})" ignoreCase="false" />
                    </conditions>
                    <action type="CustomResponse" url="index.php" statusCode="403" statusReason="Forbidden" statusDescription="Forbidden" />
                </rule>
                <rule name="Imported Rule 2">
                    <match url="(.*)" ignoreCase="false" />
                    <conditions logicalGrouping="MatchAll">
                        <add input="{REQUEST_FILENAME}" matchType="IsFile" ignoreCase="false" negate="true" />
                        <add input="{REQUEST_FILENAME}" matchType="IsDirectory" ignoreCase="false" negate="true" />
                        <add input="{URL}" pattern="^/index.php" ignoreCase="true" negate="true" />
                        <add input="{URL}" pattern="(/component/)" ignoreCase="false" negate="true" />
                        <add input="{URL}" pattern="(/|\.php|\.html|\.htm|\.feed|\.pdf|\.raw|/[^.]*)$" />
                    </conditions>
                    <action type="Rewrite" url="index.php" />
                </rule>
            </rules>
        </rewrite>
    </system.webServer>

