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147 points aanthonymax | 9 comments | 04 Sep 25 15:46 UTC | HN request time: 0.789s | source | bottom
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judah ◴[04 Sep 25 16:50 UTC] No.45129306[source]▶
Cache is super useful for making web apps available offline.

I run a guitar chord chart site[0] that uses cache to enable offline experience; any chord charts you view while online are then available offline thanks to cache. It works pretty great. You service worker intercepts HTTP requests and can first check the cache for cached request/responses.

[0]: https://messianicchords.com

replies(1): >>45129943 #
1. inetknght ◴[04 Sep 25 17:37 UTC] No.45129943[source]▶
> Cache is super useful for making web apps available offline.

... until you find someone who has very low cache available. Or cache gets evicted.

replies(5): >>45129989 #>>45130694 #>>45131396 #>>45131818 #>>45132139 #
2. arm32 ◴[04 Sep 25 17:42 UTC] No.45129989[source]▶
We don't talk about those people.
replies(1): >>45130017 #
3. ◴[04 Sep 25 17:44 UTC] No.45130017[source]▶
4. qwertox ◴[04 Sep 25 18:38 UTC] No.45130694[source]▶
Maybe they should have put the line

The browser does its best to manage disk space, but it may delete the Cache storage for an origin.

in a warning box.

replies(1): >>45130788 #
5. NoahZuniga ◴[04 Sep 25 18:46 UTC] No.45130788[source]▶
You know, you could just improve this. All you need to go is find the github link for the article at the bottom of the page, find the edit button, and github will guide you through the rest of the process.

(I've done so myself a few times)

If you prefer you can also clone and make a pull request using standard git tools.

6. stonogo ◴[04 Sep 25 19:39 UTC] No.45131396[source]▶
Or their computer breaks. Or their electricity cuts off. Or an asteroid hits them.

...things can be super useful without being flawless.

7. judah ◴[04 Sep 25 20:22 UTC] No.45131818[source]▶
...that's OK.

My app works fine online or offline. If you're offline and you ran out of disk space and the cache got evicted, ok, you can't use my web app offline.

(And, if you're out of disk space, all bets are off. You're gonna have other, more significant problems beyond a guitar chord chart site not working offline.)

8. wredcoll ◴[04 Sep 25 21:01 UTC] No.45132139[source]▶
Yeah, good point, it also doesn't help people when their cpu catches fire.
replies(1): >>45148973 #
9. stogot ◴[06 Sep 25 13:08 UTC] No.45148973[source]▶
It also won’t work when a EMP is used over the continental United States.