[Bug]: Invalid argument (callbackUrlScheme) on macOS

[Sabin-DC]

Description

I apologize if this isn't the place, i'm not sure how to open an issue as a question rather than a bug or where I could go to ask this. I'm sure it's a config issue, but basically the same code in windows works, but on macos throws this error

ArgumentError (Invalid argument (callbackUrlScheme): must be a valid URL scheme: "http://localhost:60665")

Minimal Reproduction

Steps to reproduce the behaviour:

1. Use the following code:

   getCode() async {
     const clientID = 'PLACEHOLDER';
     const response_type = 'code';
     const redirect_uri = 'http://localhost:60665';
     const scope = 'write:users';
     final pkcePair = PkcePair.generate();
     final result = await FlutterWebAuth2.authenticate(
         url:
             'https://myanimelist.net/v1/oauth2/authorize?client_id=$clientID&redirect_uri=$redirect_uri&response_type=$response_type&scope=$scope&code_challenge=${pkcePair.codeChallenge}',
         callbackUrlScheme: 'http://localhost:60665');
     String code = Uri.parse(result).queryParameters['code']!;
     print(code);
   }

2. [...]

Exception or Error

ArgumentError (Invalid argument (callbackUrlScheme): must be a valid URL scheme: "http://localhost:60665")

Expected Behaviour

Should open the browser

Screenshots

No response

Additional context

No response

Device

MacMini

OS

MacOS

Browser

Chrome

Flutter version

3.13.0

flutter_web_auth_2 version

3.1.1

Checklist

• [X] I have read and followed the entire troubleshooting guide and it has not provided the solution I need.
• [X] I have provided all the information I can.

[ThexXTURBOXx]

This should be answered within the readme of this package or in the example. Basically, the current implementation for Windows and Linux needs a specific callback scheme. However, all the other platforms use "normal" ones as described there.

[Sabin-DC]

This should be answered within the readme of this package or in the example. Basically, the current implementation for Windows and Linux needs a specific callback scheme. However, all the other platforms use "normal" ones as described there.

I see, I guess I thought the windows way was the typical scheme, haven't been developing on mac for long. Sorry for the trouble, i'll close this and re-read the doc more thoroughly. Thank you!

[ThexXTURBOXx]

You're welcome! :)