Setting HTTPONLY for Classic Asp Session Cookie

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Microsoft includes an example using an ISAPI filter to all outbound cookies: http://msdn.microsoft.com/en-us/library/ms972826

or URL rewriting could be used http://forums.iis.net/p/1168473/1946312.aspx

<rewrite>
        <outboundRules>
            <rule name="Add HttpOnly" preCondition="No HttpOnly">
                <match serverVariable="RESPONSE_Set_Cookie" pattern=".*" negate="false" />
                <action type="Rewrite" value="{R:0}; HttpOnly" />
                <conditions>
                </conditions>
            </rule>
            <preConditions>
                <preCondition name="No HttpOnly">
                    <add input="{RESPONSE_Set_Cookie}" pattern="." />
                    <add input="{RESPONSE_Set_Cookie}" pattern="; HttpOnly" negate="true" />
                </preCondition>
            </preConditions>
        </outboundRules>
    </rewrite>

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