| Value | Meaning |
|---|---|
| REFERRER_POLICY_CLEAR_REFERRER_ON_TRANSITION_FROM_SECURE_TO_INSECURE0 | Clear the referrer header if the header value is HTTPS but the request destination is HTTP. This is the default behavior. |
| REFERRER_POLICY_DEFAULTREFERRER_POLICY_CLEAR_REFERRER_ON_TRANSITION_FROM_SECURE_TO_INSECURE | |
| REFERRER_POLICY_REDUCE_REFERRER_GRANULARITY_ON_TRANSITION_CROSS_ORIGIN1 | A slight variant on CLEAR_REFERRER_ON_TRANSITION_FROM_SECURE_TO_INSECURE: If the request destination is HTTP, an HTTPS referrer will be cleared. If the request's destination is cross-origin with the referrer (but does not downgrade), the referrer's granularity will be stripped down to an origin rather than a full URL. Same-origin requests will send the full referrer. |
| REFERRER_POLICY_ORIGIN_ONLY_ON_TRANSITION_CROSS_ORIGIN2 | Strip the referrer down to an origin when the origin of the referrer is different from the destination's origin. |
| REFERRER_POLICY_NEVER_CLEAR_REFERRER3 | Never change the referrer. |
| REFERRER_POLICY_ORIGIN4 | Strip the referrer down to the origin regardless of the redirect location. |
| REFERRER_POLICY_CLEAR_REFERRER_ON_TRANSITION_CROSS_ORIGIN5 | Clear the referrer when the request's referrer is cross-origin with the request's destination. |
| REFERRER_POLICY_ORIGIN_CLEAR_ON_TRANSITION_FROM_SECURE_TO_INSECURE6 | Strip the referrer down to the origin, but clear it entirely if the referrer value is HTTPS and the destination is HTTP. |
| REFERRER_POLICY_NO_REFERRER7 | Always clear the referrer regardless of the request destination. |
| REFERRER_POLICY_LAST_VALUEREFERRER_POLICY_NO_REFERRER | Always the last value in this enumeration. |
Policy for how the Referrer HTTP header value will be sent during navigation. If the --no-referrers command-line flag is specified then the policy value will be ignored and the Referrer value will never be sent. Must be kept synchronized with net::URLRequest::ReferrerPolicy from Chromium.