Permissions Policy
Controls whether a document and its embedded frames may use selected browser capabilities.
Support in current browsers
Checked against the current browser versions recorded in MDN browser data 8.0.7.
| Browser | Minimum | Outcome | Reason |
|---|---|---|---|
| Chrome | 150 | Works | Every required mapped BCD feature is available without a recorded qualification. |
| Edge | 150 | Works | Every required mapped BCD feature is available without a recorded qualification. |
| Firefox | 152 | Not supported | At least one required mapped feature is not available at this browser baseline. |
| Safari | 26.5 | Not supported | At least one required mapped feature is not available at this browser baseline. |
| Chrome for Android | 150 | Works | Every required mapped BCD feature is available without a recorded qualification. |
| Firefox for Android | 152 | Not supported | At least one required mapped feature is not available at this browser baseline. |
| Safari on iOS | 26.5 | Not supported | At least one required mapped feature is not available at this browser baseline. |
| Android WebView | 150 | Works | Every required mapped BCD feature is available without a recorded qualification. |
| Samsung Internet | 29.0 | Works | Every required mapped BCD feature is available without a recorded qualification. |
What this feature can and cannot do
Helps protect against
- Unexpected capability use
- Over-privileged embedded content
Does not guarantee
- User-granted permissions outside the policy
- Application authorisation
- Capabilities not covered by a directive
What you need before using it
- An inventory of required browser capabilities and frames
Fallback to keep in place
Avoid requesting unnecessary capabilities and isolate untrusted embedded content.