Get refresh_token results in error

[remcova]

When I try to get the refresh_token, I use the parameter "prompt" and set it to "consent". Unfortunately, I get the following error in the webview window from Google Firebase:
Unable to process request due to missing initial state. This may happen if browser sessionStorage is inaccessible or accidentally cleared.

This is my code:

  GoogleSignInArgs({
    required this.clientId,
    required this.redirectUri,
    this.scope = _defaultSignInScope,
    this.immediate = false,
    this.responseType = 'token id_token code',
    this.accessType = 'offline',
  });

  @override
  Map<String, String> buildQueryParameters() {
    return {
      'client_id': clientId,
      'scope': scope,
      // 'immediate': immediate.toString(),
      'response_type': responseType,
      'redirect_uri': redirectUri,
      'access_type': accessType,
      "nonce": generateNonce(),
      "prompt": "consent"
    };
  }

Does anyone experience this issue too? I've tried several things but nothing seems to work so far.

[jungti1234]

It's similar problem with me I guess?
#50 (comment)

It happened after the consent screen.

[jungti1234]

I found two reasons for the problem.

1. You should check for a match between targetUriFragment and uriString even when the navigationType is formSubmitted.

2. Even if you do No.1, you shouldn't using "contains" for check the match two URLs.
   You should only check that the targetUriFragment exactly matches the baseURL and path of the url (endpoint?).

I rearranged the order of the code a bit to get the uriString first, then get the exactUrl and compare them.

See this: jungti1234@6e376fd

Now it works fine, but I don't know if it's the best code, best way, it would be great to improve it.

[jungti1234]

And I added the prompt parameter.

See this:
jungti1234@d25cb85

[remcova]

@jungti1234 Awesome! Thank you for your time to solve this issue. Your solution works. Should we create a pull request for this?

[jungti1234]

@remcova Yes, I don't mind if you create a pull request.
Umm, Actually I fixed it from to the branch you forked, it seems to be out of sync with the main branch of this repository. So I'm not sure if I should just make my updates a pull request only while keeping the other code.

[remcova]

@remcova Yes, I don't mind if you create a pull request. Umm, Actually I fixed it from to the branch you forked, it seems to be out of sync with the main branch of this repository. So I'm not sure if I should just make my updates a pull request only while keeping the other code.

I think it would be nice to include all the changes. Especially the refresh token. While pull requests do get approved here, they are not being merged, unfortunately..