Origin-Agent-Cluster
Requests origin-keyed browser agent clustering for a document.
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 | Works | Every required mapped BCD feature is available without a recorded qualification. |
| Safari | 26.5 | Unknown | BCD does not provide enough comparable support data for this browser baseline. |
| Chrome for Android | 150 | Works | Every required mapped BCD feature is available without a recorded qualification. |
| Firefox for Android | 152 | Works | Every required mapped BCD feature is available without a recorded qualification. |
| 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
- Unnecessary same-site process sharing
- Origin isolation ambiguity
Does not guarantee
- Complete process isolation
- Application authorisation
- Browser defects
What you need before using it
- Consistent delivery across an origin
Fallback to keep in place
Use separate origins for security boundaries and avoid relying on process placement.