Constant hyper::header::PUBLIC_KEY_PINS_REPORT_ONLY

pub const PUBLIC_KEY_PINS_REPORT_ONLY: HeaderName = HeaderName{inner: Repr::Standard(StandardHeader::PublicKeyPinsReportOnly),}

Sends reports of pinning violation to the report-uri specified in the header.

Unlike Public-Key-Pins, this header still allows browsers to connect to the server if the pinning is violated.