It depends on the cache settings in index.html and how the server is configured. To answer the question appropriately, the following details are helpful.

1. Are you using create-react-app / next / gatsby / custom webpack config?
2. How are you serving images? (CDN?)
3. How are you serving JavaScript and CSS files? (Express server, something like serve?, IIS, Apache?)

Thanks for the invite to the answer, can you explain your question a little more? (an example would help a lot)

Thanks for the invite to the answer but can't help much in this one as I've barely scratched at React :)

Depends on how your static file server is configured.

Here is what I usually do.

• index.html - No cache
• .png, .svg, .jpeg - Public, Cache-age 1 week
• .css, .js - Public, Cachce-age 2 months

Every time react runs "build" it generates a new hash for css and js file. These paths are included in index.thml. Since index.html is no-cache, it's sure that always new css and js file are loaded (if there is a new build), otherwise from the cache