Item — HN Reader

There are tradeoffs either way. For popular modules it might already be in your browser cache if another app used the module recently. Plus being a CDN it's probably being served by a machine closer to the user. And if your whole site is running of a CDN then you're relying on a 3rd party anyway.

Benchmark for your users.

1 comments

Based on https://andydavies.me/blog/2018/09/06/safari-caching-and-3rd... it seems highly unlikely that a popular module will be in the cache

- Safari double keys it's cache to prevent 3rd-parties tracking across sites - Usage of common libraries is just too low for their to be a critical mass

A whole site running on a CDN still involves only one connection, will make use of the throughput growing the TCP congestion window grows, and a decent CDN is likely to be more reliable than the origin