It's disabled by default. To enable, add the following to hydra.conf:
enable_persona = 1
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post("[% c.uri_for('/logout') %]").done(function(data) {window.location.reload();}).fail(function() { bootbox.alert("Server request failed!"); });
[% IF c.user_exists %]$.post("[% c.uri_for('/logout') %]").done(function(data) {window.location.reload();}).fail(function() { bootbox.alert("Server request failed!"); });[% END %]
[% WRAPPER makeSubMenu title="Sign in" %]<li><a href="#" id="persona-signin"><img src="https://developer.mozilla.org/files/3963/persona_sign_in_blue.png" alt="Sign in with Persona" /></a></li><li class="divider"></li>
[% IF personaEnabled %][% WRAPPER makeSubMenu title="Sign in" %]<li><a href="#" id="persona-signin"><img src="https://developer.mozilla.org/files/3963/persona_sign_in_blue.png" alt="Sign in with Persona" /></a></li><li class="divider"></li><li><a href="#hydra-signin" data-toggle="modal">Sign in with a Hydra account</a></li>[% END %][% ELSE %]