Resto_cohttp.CorsCORS (cross-origin resource sharing) controls the ways in which resources from different domains are allowed to be obtained.
See the specifications at https://fetch.spec.whatwg.org/#http-cors-protocol
val default : tdefault is a t with no allowed headers and no allowed origins.
val add_allow_origin : Cohttp.Header.t -> t -> string option -> Cohttp.Header.tval add_headers : Cohttp.Header.t -> t -> string option -> Cohttp.Header.tval check_host : Cohttp.Header.t -> t -> boolcheck_host header t is true if one of t's members matches the header's Host field.