Chrome will disable modifying `document.domain` to relax the same-origin policy - Chrome Developers
Updates February 4, 2022: Updated with the new timeline - we'll show a warning in the Issues panel starting from Chrome 100, removing document.domain setter by default starting from Chrome 106. document.domain was designed to get or set the origin's hostname. On Chrome, websites will be unable to set document.domain.
https://developer.chrome.com/blog/immutable-document-domain/