Lighthouse 2.3s script evaluation time

[olso]

[REQUIRED] Describe your environment

• Operating System version: Mozilla/5.0 (Linux; Android 7.0; Moto G (4)) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4143.7 Mobile Safari/537.36 Chrome-Lighthouse
• Browser version: Mozilla/5.0 (Linux; Android 7.0; Moto G (4)) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4143.7 Mobile Safari/537.36 Chrome-Lighthouse
• Firebase SDK version: 7.24.0
• Firebase Product: main + auth

[REQUIRED] Describe the problem

Steps to reproduce:

Run lighthouse on https://web.dev (e.g. https://lighthouse-dot-webdotdevsite.appspot.com//lh/html?url=https%3A%2F%2Ffir-ui-demo-84a6c.firebaseapp.com%2F, https://lighthouse-dot-webdotdevsite.appspot.com//lh/html?url=https%3A%2F%2Fdev-www.seasy.at)

[google-oss-bot]

I couldn't figure out how to label this issue, so I've labeled it for a human to triage. Hang tight.

[hsubox76]

Hi, so I'm not familiar with that file format, I'm guessing you're using something like Snowpack? Or otherwise let us know what you're using. Either way, it would be more helpful to know how you're importing Firebase in your code. Hopefully you are using

import firebase from 'firebase/app';
import 'firebase/auth';

and not

import firebase from 'firebase'

I don't see the console warning on your site so I'm guessing you probably are using the proper import pattern.

If so, and you're still getting an unsatisfactory execution time, be aware that we're working on modularizing auth (and all other packages). This should significantly reduce bundle size although I'm not sure about the impact on execution time. Follow progress on that effort in this issue: #2241

[olso]

@hsubox76 Hi, thx for the reply.

Yes we are using

import { initializeApp, User as FirebaseUser, auth, apps, app } from "firebase/app";
import "firebase/auth";

I will check #2241 and once that's released, I'll report back on the execution time.

[ludwigbacklund]

Can confirm that this is still a problem with the v9 SDK. Here's an image visualizing the problem.