ion_auth adds unnecessary index.php in HTTP location

Question

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>

Answer 1

Have you removed the string index.php from this config item (in application/config/config.php)?

$config['index_page'] = 'index.php';

should be

$config['index_page'] = '';

Redirects and uri generation are based upon this value.