| Value | Meaning |
|---|---|
| Default1 | The default authentication scheme of WebKit. |
| HttpBasic2 | Basic authentication scheme as defined in RFC 2617. |
| HttpDigest3 | Digest authentication scheme as defined in RFC 2617. |
| HtmlForm4 | HTML Form authentication. |
| Ntlm5 | NTLM Microsoft proprietary authentication scheme. |
| Negotiate6 | Negotiate (or SPNEGO) authentication scheme as defined in RFC 4559. |
| ClientCertificateRequested7 | Client Certificate Authentication (see RFC 2246). |
| ServerTrustEvaluationRequested8 | Server Trust Authentication. |
| ClientCertificatePinRequested9 | Client certificate PIN required for use. Since: 2.34 |
| Unknown100 | Authentication scheme unknown. |
Enum values representing the authentication scheme.