javascript - Chrome Extension auth/network-request-failed when communicating with Firebase

Question

I'm trying to implement the Firebase E-Mail login into my Extension. From the extensions popup.html, I'm calling my login.html, which handles the process, it looks like this:

firebase.auth().signInWithEmailAndPassword(email, password).catch(function(error) {
          var errorCode = error.code;
          var errorMessage = error.message;
          if (errorCode === 'auth/wrong-password') {
            alert('Wrong password.');
          } else {
            console.error(error); //This produces the error quoted below
          }
        });

When I just open my login.html locally, it works. Calling it from the extensions popup makes it not work, and I get the error:

"auth/network-request-failed"

I'm assuming Chrome prevents my script from communication with the server. Is there a workaround for this? Couldn't find any solution in the docs. It is not the content security policy which does that, that I already fixed.

---- UPDATE

After Firebase now released 3.0.5, I'm getting a different error now:

"auth/too-many-requests"

Answer 1

Waitting for answers