When doing a HTTP request in Flutter I do not get any Exception like SocketException when WiFi is on but there is actually no internet, rather it waits long time until I get the defined TimeoutException. Also this issue appears when there is network connection in the beginning but suddenly the connection drops.

How do I make it that it directly gives an exception whenever network issues occur?

This my current code:

try {
  await http
      .get(url, headers: headers)
      .timeout(const Duration(seconds: 20));
} on SocketException catch (e, st) {
  debugPrint('SocketException. Seems to be no internet available');
  debugPrint(e.toString());
  debugPrint('OS Errorcode: ${e.osError?.errorCode.toString()}');
} catch (e, st) {
  debugPrint('Unknown error happen in `tryAndHandle`:');
}