Laravel asset file 404

I upload new file on my server in public\js\ folder. But I can't access it - 404 error. All other files in folder is fine. I can open it. But if I rename one of this files (for example file named test.js and I can access it) to other name (test.js to test2.js) - I'v got 404 error.

https://some/js/app.js - work fine
rename `app.js` to `app2.js`
https://some/js/app2.js - 404 error

Is Laravel 5.5 store names of allowed to access files? How can I fix it?

via Chebli Mohamed