Method set_header

src/fl/net/http/fetch.h:137–139

    void set_text(const fl::string& body) { mBody = body; }  // Backward compatibility
    void set_body(const fl::string& body) { mBody = body; }
    void set_header(const fl::string& name, const fl::string& value) {
        mHeaders[name] = value;
    }

private:
    int mStatusCode;