Modify a custom configuration file in a production environment

The frontend provides a configuration file that sets the request interval and can be modified by field personnel. I customized config.js in the public directory. I want to modify the file in production env to achieve the purpose of modifying request interval. However, it does not work. Browser-side file is not updated, even if I clear the cache.

public/config.js

export const TIME = 2000;

src/app.js

import { TIME } from '../public/config.js';

What should I do to fix it ? Thank you for your reply!

[heyimalex]

I think you could do something like this.

public/config.js

window.MY_GLOBAL_TIME = 2000;

src/app.js

const TIME = window.MY_GLOBAL_TIME;

public/index.html

<!-- Add to head -->
<script src="%PUBLIC_URL%/config.js">

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