Document Policy
- UNOFFA mechanism that allows developers to set certain rules and policies for a given site. The rules can change default browser behaviour, block certain features or set limits on resource usage. Document Policy is useful both for security and performance, and is similar to Permissions Policy.
Chrome
- 4 - 84: Not supported
- 85 - 113: Partial support
- 114: Partial support
- 115 - 117: Partial support
Edge
- 12 - 84: Not supported
- 85 - 113: Partial support
- 114: Partial support
Safari
- 3.1 - 16.4: Not supported
- 16.5: Not supported
- 16.6 - TP: Not supported
Firefox
- 2 - 112: Not supported
- 113: Not supported
- 114 - 115: Not supported
Opera
- 9 - 70: Not supported
- 71 - 98: Partial support
- 99: Partial support
IE
- 5.5 - 10: Not supported
- 11: Not supported
Chrome for Android
- 114: Partial support
Safari on iOS
- 3.2 - 16.4: Not supported
- 16.5: Not supported
- 17: Not supported
Samsung Internet
- 4 - 20: Not supported
- 21: Not supported
Opera Mini
- all: Not supported
Opera Mobile
- 10 - 12.1: Not supported
- 73: Partial support
UC Browser for Android
- 13.4: Not supported
Android Browser
- 2.1 - 4.4.4: Not supported
- 113: Partial support
Firefox for Android
- 113: Not supported
QQ Browser
- 13.1: Not supported
Baidu Browser
- 13.18: Partial support
KaiOS Browser
- 2.5: Not supported
- 3: Not supported
Standard support includes the HTTP Document-Policy header and policy attribute on iframes.