[Bug] Warning: Using UNSAFE_componentWillMount in strict mode...

[NafiurSiddiqui]

Bug Report

Warning: Using UNSAFE_componentWillMount in strict mode is not recommended and may indicate bugs in your code

Describe the bug

I get the following warning in the console -

client.js:1  Warning: Using UNSAFE_componentWillMount in strict mode is not recommended and may indicate bugs in your code. See https://reactjs.org/link/unsafe-component-lifecycles for details.

* Move code with side effects to componentDidMount, and set initial state in the constructor.

Please update the following components: SideEffect(NullComponent)

It is caused by react-helmet which is outdated now and started throwing error in the console.

Is this a regression?

Steps To Reproduce the error

1. simply running npm run dev after hooking up your WP url.

Expected behaviour

No warning of such.

CodeSandbox or Live Example of Bug

Screenshot or Video Recording

Your environment

• OS: OS Name: Microsoft Windows 11 Home Single Language
  OS Version: 10.0.22621 N/A Build 22621
• Node version: v19.7.0
• Npm version: 9.6.5
• Browser name and version: Ms Edge Version 116.0.1938.69

Additional context