Method onError

test/test_emscripten_async_wget2.cpp:32–35

  }

  static void onError(unsigned handle, void* parent, int statuserror) {
    http* req = reinterpret_cast<http*>(parent);
    req->onError(statuserror);
  }

  static void onProgress(unsigned handle, void* parent, int progress) {
    http* req = reinterpret_cast<http*>(parent);