系统
权限检查器
查看浏览器公开的摄像头、麦克风、位置、通知和剪贴板权限状态。
隐私: 该页面仅读取权限状态。除非您选择显式测试按钮，否则它不会打开设备或请求新的访问权限。
界面标签和工具名称已翻译。此页面上的详细指南和常见问题解答目前以英文编写。
测试接口
按“开始”后，您的浏览器可能会请求许可。如何使用这个工具
- Click Read permission states.
- Review granted, denied, prompt, or unsupported values.
- Use the optional live checks only if you want to trigger a browser prompt.
- Change blocked permissions in the browser site settings and reload.
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技术说明
The Permissions API exposes some permission states by name. Support varies by browser and permission. Camera and microphone states may be hidden until the page has requested them at least once.
A prompt state means the browser has not decided yet. The page cannot grant permission on your behalf and cannot bypass a blocked state.
故障排除
States show unsupported
The browser may not implement Permissions.query for that name.
Camera still shows prompt after granting
Some browsers do not expose media permission state until a stream is opened.
A permission is blocked
Use the browser site settings to reset it.
Location is not available
Check system location services and the secure-context requirement.
相关工具
常见问题
No. It reads available states and offers optional live checks separately.
No. Browsers require you to use their own site settings.
It may be unsupported by the browser or not exposed for privacy reasons.
No.
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