>>> [!note] Migrated issue <!-- Drupal.org comment --> <!-- Migrated from issue #3575072. --> Reported by: [lauriii](https://www.drupal.org/user/1078742) Related to !644 >>> <h3 id="overview">Overview</h3> <p>When trying to preview components in Safari, the HTTP request respond 401 and shows a HTTP authentication form.</p> <p><img src="https://www.drupal.org/files/issues/2026-02-22/Screenshot%202026-02-22%20at%2014.48.58.png" alt=""><br> <img src="https://www.drupal.org/files/issues/2026-02-22/Screenshot%202026-02-22%20at%2014.46.19.png" alt=""></p> <p>Steps to reproduce (in Safari):</p> <ol> <li>Create a code component</li> <li>Add component to library</li> <li>Hover over component in library</li> <li>Confirm that the HTTP authentication form displays</li> </ol> <h3 id="proposed-resolution">Proposed resolution</h3> <p>Use srcDoc instead of src for component previews so assets that require authentication, such as the api/v0/auto-save ones in code components, are aware of the current session.</p> <h3 id="ui-changes">User interface changes</h3>