[1] RFC 4437 - Web Distributed Authoring and Versioning (WebDAV) Redirect Reference Resources (2017-09-24 19:11:37 +09:00) <https://tools.ietf.org/html/rfc4437#section-5>

[2] RFC 4437 - Web Distributed Authoring and Versioning (WebDAV) Redirect Reference Resources (2017-09-24 19:11:37 +09:00) <https://tools.ietf.org/html/rfc4437#section-12.1>

[3] Amazon S3 には x-amz-website​-redirect-location: ヘッダーがあります。