Scroll Event Listener Not Triggering in Next.js Client-Side Component

Question

I'm developing a web application using Next.js 14.0.4 and React 18.2.0. My goal is to listen for scroll events on the entire page from a client-side component (specifically, a header component), but my scroll event listener does not seem to be triggered despite the component mounting successfully.

Here is the relevant code snippet from my header component:

import { useEffect } from 'react';

const Header = () => {
  useEffect(() => {
    console.log('Header mounted'); // This logs correctly
    const handleScroll = () => {
      console.log('Current Scroll Position:', window.scrollY); // This never logs
    };

    window.addEventListener('scroll', handleScroll);

    return () => {
      window.removeEventListener('scroll', handleScroll);
    };
  }, []);

  return (
    <header>
      {/* Header content */}
    </header>
  );
};

export default Header;

Note that the issue also occur when I'm adding the EventListener to document instead of window

Questions:

1. Is there a known issue with scroll event listeners in Next.js 14 or React 18 that could be causing this behavior?

2. Could Next.js's routing or page structure be interfering with the ability to detect scroll events at the window level?

3. Are there any best practices or alternative approaches recommended for attaching scroll listeners in a Next.js application?

4. Any insights or suggestions on how to debug this issue further would be greatly appreciated. Thank you in advance!

Answer 1

I managed to resolve the problem by attaching the event listener to document.body instead of window

const handleScroll = () => {
    console.log('scrolled!');
};

useEffect(() => {
    document.body.addEventListener('scroll', handleScroll);

    return () => document.body.removeEventListener('scroll', handleScroll);
}, []);