HTTP Header - Permissions-Policy - attribution-reporting

[JJoe]

RANDOM username and a RANDOM password does not return "unrecognized feature: attribution-reporting" in the error console for this Opera. I see "We are unable to process your request at this time. Please try again..." under the password field.

Are you spoofing your user-agent to mimic v117 or younger? If so, try with a user-agent that doesn't support this feature.

You could also try removing all the related headers.

https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Attribution-Reporting-Eligible
shows Attribution-Reporting-Eligible (out), and Attribution-Reporting-Register-Source (in) or Attribution-Reporting-Register-Trigger (in)

So

Code:

[HTTP headers]
In = FALSE
Out = TRUE
Key = "Attribution-Reporting-Eligible: 24.06.29 (Out) `"
URL = "?|reg.usps.com/login"

In = TRUE
Out = FALSE
Key = "Attribution-Reporting-Register-Source: 24.06.29 (In) `"
URL = "?|reg.usps.com/login"

In = TRUE
Out = FALSE
Key = "Attribution-Reporting-Register-Trigger: 24.06.29 (In) `"
URL = "?|reg.usps.com/login"

URL match is optional. Used to add notes.
The ` lets me display only the filters that I have added.

More at https://developer.mozilla.org/en-US/docs/Web/API/Attribution_Reporting_API