[the_other]

Facebook release multiple times a day (or they did), so the browser cache is irreLevant.

[victorvation]

As mentioned in the blogpost, they use code splitting and bundle hashing to actually maximize usage of browser cache.

[pier25]

If you have code splitting many chunks will remain the same.

[randall]

There's a bunch of ways FB mitigates this.

[the_other]

Thanks siblings, for letting me know about FB’s use of code splitting and how it helps caching.

[foota]

I would bet that js bundling and splitting might prevent that from being true?

[speedgoose]

Perhaps but thankfully not all webapps are like Facebook.