title: Firebase auth internal error "SignUp are blocked" on web
body: <p>I'm using Firebase Auth for a site and chosen password authentication and Google Sign In. When I ran it I got the following: </p>
  
  <p><code>{"error":{"code":403,"message":"Requests to this API identitytoolkit method google.cloud.identitytoolkit.v1.AuthenticationService.SignUp are blocked.","errors":[{"message":"Requests to this API identitytoolkit method google.cloud.identitytoolkit.v1.AuthenticationService.SignUp are blocked.","domain":"global","reason":"forbidden"}],"status":"PERMISSION_DENIED"}}</code></p>
  
  <p>I already enabled both password and Google Sign In from Firebase console and also enabled the Identity Toolkit API in my Google Cloud Platform console but I still get this error.</p>