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Note on 2: I haven't seen this get a lot of use (or maybe I just haven't noticed it), but the Storage API also provides a `sessionStorage` object [1] with some

by mhink 4y ago

Note on 2: I haven't seen this get a lot of use (or maybe I just haven't noticed it), but the Storage API also provides a `sessionStorage` object [1] with some interesting properties. Not only are values persisted across same-tab refreshes, but if you duplicate the tab, the session values are copied over as well (but they don't remain linked like `localStorage`). An interesting use case for this, IMO, is for tracking dynamic layout values (like if you have resizable panels, scroll areas, etc). If you keep this kind of thing in sessionStorage, you can refresh or duplicate the working tab and that ephemeral state will carry over, but since it's copied (not shared) the tabs won't step on each other. 1: https://developer.mozilla.org/en-US/docs/Web/API/Window/sessionStorage https://developer.mozilla.org/en-US/docs/Web/API/Window/sess...

skrebbel 4y ago
Unfortunately sessionStorage is not copied over when you ctrl+click a link, and that’s arguably the most common way to “duplicate” a tab. Something about security iirc but i dont grok it. Still an underappreciated browser feature though, esp for class server-side rendered apps.
- mhink 4y ago
  I'm actually kinda surprised that's the case for links to the same origin. I suppose you could probably still get this working by using `window.opener` along with `postMessage` to request data from the opener, although you'd have to be very conscientious about checking the origin and verifying that the requested data is actually ok to share.
swyx 4y ago
i was thinking 2 is more like Redux, btw :) ive never honestly used sessionStorage as it's not intuitive to me (if i want it clientside i should probably track it serverside, and at that point server is my source of truth)
s4i 4y ago
Yup. Session storage is particularly useful for remembering the initial URL of the user when they leave your app for SSO.

by mhink 4y ago

skrebbel 4y ago

Unfortunately sessionStorage is not copied over when you ctrl+click a link, and that’s arguably the most common way to “duplicate” a tab. Something about security iirc but i dont grok it. Still an underappreciated browser feature though, esp for class server-side rendered apps.

mhink 4y ago
I'm actually kinda surprised that's the case for links to the same origin. I suppose you could probably still get this working by using `window.opener` along with `postMessage` to request data from the opener, although you'd have to be very conscientious about checking the origin and verifying that the requested data is actually ok to share.

swyx 4y ago

i was thinking 2 is more like Redux, btw :) ive never honestly used sessionStorage as it's not intuitive to me (if i want it clientside i should probably track it serverside, and at that point server is my source of truth)

s4i 4y ago

Yup. Session storage is particularly useful for remembering the initial URL of the user when they leave your app for SSO.