cloneWith method
Creates a new Response instance with the same content and headers,
appending the specified values from headers
Map.
Implementation
Future<Response> cloneWith({Map<String, String>? headers}) async {
ByteBuffer buffer = await clone().arrayBuffer();
return Response._(facade.Response(
buffer,
facade.ResponseInit(
status: status,
statusText: statusText,
headers: this.headers.clone(headers: headers)._delegate),
));
}