Default: permission has not been granted to denied.
Granted: you allowed the website to send you notifications.
Denied: you blocked the website to send you notifications. This can be a temporary block if you clicked the x to close the prompt repeatedly or a permanent block if you clicked Block or toggled off permission in the browser settings.
Do not use an incognito, private, or guest browser setting. This example uses Chrome version 135 on macOS but the flow should be relatively the same for most browsers.
2
重置推送权限
Click the site settings or lock icon next to the site URL and select Reset permission or remove permissions for Notifications.
Skip to the next step if you don’t see this permission option.
Chrome 站点设置菜单 > 重置通知权限。
3
删除站点数据。
Click Cookies and site data > Manage on-device site data or follow the browser’s flow to see your site’s data option.
Chrome 的设备上站点数据屏幕。
删除您网站的数据并退出设置以返回您的网站。
示例显示清除您的站点 Cookie。
4
打开开发者工具。
Usually you can just right click the screen and press Inspect.
Chrome - Chrome runs as a background process by default even when all the windows are closed. As long as the background process is running, notifications will still be received. If the Chrome background process is not running, notifications will not be received.Firefox - On Mac OS X, the process still exists even if windows are closed, and a notification can be received if all windows are closed (as long as there is still a dot in the dock showing Firefox is still running). On Windows, the process exits after all windows are closed so notifications cannot be received unless a Firefox window is still open.Safari - Safari does not have to be running to receive notifications, as they are sent directly to the operating system. The user still has to sign up for Safari web notifications, but after that they will be received even when Safari is completely closed.订阅者最多有 3 天时间来检索最后一个已知的缺失通知，之后消息将永久过期。For example, suppose a subscriber was supposed to receive a Firefox web push notification, but Firefox was closed. If the subscriber opens Firefox within 3 days, the subscriber will receive only the last known web push notification that didn’t expire. If the subscriber opens Firefox after 3 days, the web push notification sent more than 3 days ago will not be received.
