alt Hacker News>A spotty connection hasn’t loaded the dependencies correctly - Either they load or they don't. How would the dependencies load "incorrectly"?
Let‘s say you have 5-7 dependencies to load, but 3 of them timed out because your train entered the tunnel. Your app ends up in incorrect state, fails silently and UX degrades unpredictably. This is where the conversion often drops visibly and the reason SSR is now a go-to solution for any marketing website.
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A normal person would immediately think "dang, page didn't load before I entered the tunnel. Guess I'll wait til I'm out again and refresh".
And if they're deliberately going somewhwre where there's no signal for an extended period of time, and really want it to work, they'll ensure they've loaded everything before doing so.
And I say this as someone who is developing a pwa that is for people with low end phones and very inconsistent and/or connections. I'm very cognizant and empathetic to their situation.
Why am I loading dependencies from 5-7 places? Why is my website not using a bundler if it has so many varied dependencies? Why do we not expect the user to understand that they are in a tunnel without internet?
Regardless, this isn't really restricted to the usage of JavaScript. The website would likely have pretty bad UX if only half of the CSS loaded correctly, but no one programs defensively around it being absent.