             upgrade: upgrade
         )
 
-        self.content = convertible.content
+        self.content = content.content
     }
 }
 

            upgrade: upgrade
        )

        self.content = convertible.content
    }
}
        self.content = content
    }

    public init(method: Method = .get, uri: URI = URI(path: "/"), headers: Headers = [:], content: ContentRepresentable, upgrade: Upgrade? = nil) {
        self.init(
            method: method,
            uri: uri,
