ParentNode.append is the Workers stream helper under the root typecheck, so the preview attaches DOM nodes with appendChild. The sync queue test restores navigator after forcing onLine, so a later headless TipTap test can still read userAgent.
ParentNode.append is the Workers stream helper under the root typecheck, so the preview attaches DOM nodes with appendChild. The sync queue test restores navigator after forcing onLine, so a later headless TipTap test can still read userAgent.