256201 2023-05-02 00:34:14 -0700 The onchange event in navigator.permissions.query doesn't work properly in Safari 16.4. 2023-06-12 07:03:00 -0700 1 1 1 Unclassified WebKit WebKit Misc. Safari 16 Unspecified iOS 16 NEW BrowserCompat, InRadar P2 Normal --- 1 jyunhanlin webkit-unassigned cdumez joshualuckers jyunhanlin karlcow sihui_liu webkit-bug-importer oldest_to_newest 1952325 0 jyunhanlin 2023-05-02 00:34:14 -0700 # Steps to Reproduce: 1. Open a web page in Safari 16.4. 2. Try to register the onchange event with the following code: ``` navigator.permissions.query({ name: 'notifications' }).then(permissionStatus => { permissionStatus.onchange = () => { console.log('Notification permission status has changed:', permissionStatus.state); }; }); ``` 3. Choose to either allow or block the notification permission in the popped-up permission request dialog. 4. Observe if the console outputs a message indicating the change of notification permission status. # Expected Results: The console should output a message indicating the change of notification permission status when the permission status is changed. # Actual Results: The console doesn't output any message indicating the change of notification permission status when the permission status is changed. # Version Information: Safari browser version: 16.4 Operating system: macOS Big Sur 11.6.3 # Additional Information: The onchange event works fine in other modern browsers such as Chrome, Firefox, and Edge. 1952554 1 webkit-bug-importer 2023-05-02 18:43:59 -0700 <rdar://problem/108820760>