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<p>New issue 993: How to treat a zero max_age request parameter? <a href="https://bitbucket.org/openid/connect/issues/993/how-to-treat-a-zero-max_age-request">https://bitbucket.org/openid/connect/issues/993/how-to-treat-a-zero-max_age-request</a></p>
<p>Vladimir Dzhuvinov:</p>
<p>The core spec is not clear how an OP must treat an OpenID authentication request with `max_age=0`, and this question was raised by a developer:</p>
<ol><li><p>Leave it up to the OP to decide whether the end-user is to be (re)authenticated (same as max_age omitted)?</p></li>
<li><p>Treat it as a prompt=login request?</p></li></ol>
<p>OpenID PAPE also appears ambiguous on this. Is there an established practise when max_age=0?</p>
<p>Vladimir</p>
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