3.2.5.1 Translate Header
The WebDAV server MUST respond with the actual source of the file if the translate header exists with a flag value "f." The WebDAV server SHOULD perform access checks when it processes a command that contains a Translate: f header.<19>
To maintain consistency with web browsers, the default behavior if this header is omitted is to translate the file; that is, omission of this header is the same as sending Translate: t.<20>