>>> [!note] Migrated issue <!-- Drupal.org comment --> <!-- Migrated from issue #3122727. --> Reported by: [joelpittet](https://www.drupal.org/user/160302) >>> <h3 id="summary-problem-motivation">Problem/Motivation</h3> <blockquote><p>Notice: Undefined property: stdClass::$user_agent in ctools_header_plugins_request_header_ctools_access_check() (line 54 of ctools_header_plugins/plugins/access/request_header.inc).</p></blockquote> <h3 id="summary-proposed-resolution">Proposed resolution</h3> <p>Check value is not NULL</p> <h3 id="summary-remaining-tasks">Remaining tasks</h3> <h3 id="summary-ui-changes">User interface changes</h3> <h3 id="summary-api-changes">API changes</h3> <h3 id="summary-data-model-changes">Data model changes</h3> <h3 id="summary-release-notes">Release notes snippet</h3>