<tal:favicon define="portal_url view/site_url">
    <link rel="shortcut icon" type="image/x-icon" tal:attributes="href string:$portal_url/++plone++senaite.core.static/images/favicon.ico" />
    <link rel="apple-touch-icon" tal:attributes="href string:$portal_url/++plone++senaite.core.static/images/favicon.ico" />
</tal:favicon>
