title: Firebase Admin Invalid Token
body: <p>I have this Error when I am trying to access a protected route with a auth google token.
  hire is the error </p>
  
  <pre><code>{
      "code": "auth/argument-error",
      "message": "Firebase ID token has invalid signature. See https://firebase.google.com/docs/auth/admin/verify-id-tokens for details on how to retrieve an ID token."
  }
  </code></pre>
  
  <p>I'am using nodejs on the server, the Api work well with postman but when i trying to access the same route in my flutter app i have this => as error: <code>403 message:{"error":"UnAuthorized"}</code>
  Is there any one who has a solution???</p>