The header has been redundant since 2018 as all CAs and browsers enforce
certificate transparency already and is now a requirement. It's also
not even implemented in others browsers except for Chrome, and
Chrome 107 deprecates this header.
Signed-off-by: r3g_5z <june@terezi.dev>
It's an IE8-era header where Adobe products used to use the IE engine
when making outbound web requests to embed webpages such as
Adobe Acrobat. This is something that a secure and modern CSP would
protect against.
Signed-off-by: r3g_5z <june@terezi.dev>