Getting intermitent 404's for JavaScript chunks on Semrush

[fhuneeus]

Hi guys.

On my team we have a NextJS app deployed in Netlify.
The SEO team on SemRush run an audit of our app and saw that we are getting 404 errors for a lot of resources intermitently (some months it shows up, some it does not).

These are some of the files reported as a 404.
(I put mydomain.com just for example purposes. There is a real domain).

https://mydomain.com/_next/static/chunks/2140.209ab677af964397.js
https://mydomain.com/_next/static/chunks/5913.9e4a830a464dbfce.js
https://mydomain.com/_next/static/chunks/7983.ae7dec4c0963889b.js
https://mydomain.com/_next/static/chunks/webpack-96c907bc147f13be.js
https://mydomain.com/_next/static/chunks/584-6613e7ecad613414.js

Do you know or can help me to fix this so that we do not get 404’s on these resources?

Thanks!

[sid.m]

Without looking at your specific site, I’d guess you’re running into this issue:

[Support Guide] Handling code-splitting issues on Netlify

Understanding code-splitting: When building SPAs (or any kind of an app that relies purely on client-side navigation), it’s common to have large bundle sizes depending on the size and nature of the application. However, these large bundle sizes lead to poor user experiences as the users needs to wait for the entire bundle the load before the app becomes interactive. The worse part is that, your users might not even access each and every code-path, which means, a big part of your bundle might no…