以下是我解决这个问题的方法:

基本上:

1)启用“嵌入式浏览器OAuth登录”

2)禁用“使用严格模式重定向uri”，并输入重定向 就像我做的那样。

3)保持其他选项不变。

4)保存您的更改。

5)享受:)

在Magento 2社交登录扩展，你必须从面板复制有效OAuth重定向uri，并在developers.facebook.com客户端OAuth设置页面中添加有效OAuth重定向uri字段的链接

In the App domain section, you are writing your app domain but you also need to add your login domain i.e. the name of html page where you ask user to login. In my case, I was testing it on localhost and the login route was localhost/login, If I only put http://localhost.com in App domain section, I get this error. But after adding http://localhost/login.com, the error was fixed. and also the App settings has changed in newer version of SDK, in which there is no option for OAuth redirect route. You've to assign the redirect route directly from server side, after successfully getting OAuth token.

如果您正在使用AWS Cognito，则在Facebook Login ->设置中添加URL https://<your-user-pool-domain>/oauth2/idpresponse到有效OAuth重定向uri

Facebook最近禁用了“使用严格模式重定向URI”的切换按钮，所以当你点击登录按钮时，你需要添加确切的URI。对于我的案例，它如截图所示。 它为我解决了这个问题:)

如果你的游戏没有服务器/站点(例如，如果你像我一样为Gameroom开发)-添加“https://apps.facebook.com/xxxxxxxxxxxxxxxxx”(把你的应用ID改为“xxxxxxxxxxxx”)到“Valid OAuth Redirect uri”。