isHeaderForbidden
isHeaderForbidden(header: String): Boolean;
The isHeaderForbidden method of the JadeRestRequest class returns true if the header specified in the header parameter is one that is forbidden and cannot be modified; otherwise it returns false.
The special forbidden headers that cannot be modified are listed at:
https://developer.mozilla.org/en-US/docs/Glossary/Forbidden_header_name
2022.0.01 and higher