Hello,
We use to in our outlook popup:
createAuth0Client(state.auth0Options).then(auth0 => {
auth0.loginWithRedirect({
redirect_uri: state.auth0Options.dialogRedirectUri
})
});
When user type incorrect credentials auth0 do POST to
https://…eu.auth0.com/u/login?state=…
that return 400 (Bad Request)
But this is error can broke behaviour for some specific place or browsers, for example: in Popup for Outlook Desktop.