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Web auth doesn't retrieve the access_token #167

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benjaminhorner opened this issue Jun 29, 2023 · 0 comments
Open

Web auth doesn't retrieve the access_token #167

benjaminhorner opened this issue Jun 29, 2023 · 0 comments

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@benjaminhorner
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I have implemented oAuth2 for both Android and iOS and they are both working fine.

I am now trying to do the same for Flutter Web but the token does not seem to be passed to the web app.

I have a login button that successfully opens the auth popup and redirects to the call back HTML page which is as follows:

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <title>Scorefun</title>
    <link rel="icon" href="./favicon.ico" type="image/x-icon" />
  </head>
  <body>
    <main>
      <h1>Loading…</h1>
    </main>
  </body>
  <script>
    window.onload = function () {
     const url = new URL(document.URL);
        const urlSearchParams = url.searchParams;
        const access_token = encodeURI(urlSearchParams.get("code"));
        const returnUrl =  window.location.href;
        if (access_token) {
         window.opener.postMessage(
             returnUrl,
              window.location.origin
            );
  </script>
</html>

I have also tried using the customUriScheme (scheme://?code=XYZ…) but to no avail.

I get a 200 HTTP response status in the web app but no token or anything else.

What am I missing? Does the returnUrl have to have a certain format? Does the token necessarily have to have "code" as query parameter? How does the plugin retrieve the token from the URL?
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@benjaminhorner