Dio can not request https://domain:port

[Coder7777]

Package

dio

Version

4.0.6

Operating-System

Android, iOS

Adapter

Default Dio

Output of flutter doctor -v

[!] Flutter (Channel main, 3.20.0-17.0.pre.53, on macOS 14.2 23C64 darwin-arm64, locale en-CA)
    ! Warning: `dart` on your path resolves to /opt/homebrew/Cellar/dart/3.0.4/libexec/bin/dart, which is not inside your current Flutter SDK checkout at /Library/flutter. Consider adding
      /Library/flutter/bin to the front of your path.
[✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
[✓] Xcode - develop for iOS and macOS (Xcode 15.3)
[✓] Chrome - develop for the web
[✓] Android Studio (version 2021.3)
[✓] IntelliJ IDEA Ultimate Edition (version 2023.3.4)
[✓] VS Code (version 1.71.2)
[✓] VS Code (version 1.87.2)
[✓] Connected device (4 available)
[✓] Network resources

Dart Version

3.20.0

Steps to Reproduce

Use Dio to request(Get Method) https://www.abc.com:5001/api/test.

It will throw the error "No address associated with hostname". But the webapi is running well, I am sure I can use postman to get data from same API URL.

If I use my domain(https://www.abc.com/api/test) as the default port(443), then Dio works as expected.

Why Dio dose not support https://domain:port this way?

Expected Result

get the json output

Actual Result

Get the error “No address associated with hostname”

[AlexV525]

You're using a outdated package version and an unknown Dart version. We no longer support Dio 4.x.

Besides, please check your internet connection and permission on your devices.

[Coder7777]

You're using a outdated package version and an unknown Dart version. We no longer support Dio 4.x.

Besides, please check your internet connection and permission on your devices.

Dart SDK version: 3.4.0-190.0.dev (dev) (Thu Feb 29 08:14:33 2024 -0800) on "macos_arm64"

I do not think it cause by my network, I can get responses from Chrome browser and Postman when I call
https://abc.domain.com:5001/api/test.

I create a new empty flutter project, chose Dio 5.4.2. It is the same error.

[Coder7777]

          final dio = Dio();
          var result = await dio.get(
            "https://qqlykm.cn:443/api/free/ip/get",
            options: Options(
              contentType: Headers.jsonContentType,
            ),
          );
        },

you can try above codes. I think you can get the same error with me.

[Coder7777]

@AlexV525

[Coder7777]

Postman result

[AlexV525]