Cookie policy

No strictly necessary cookies, no session cookies, no analytics, no advertising. The pages are static files; there is no server session needing an identifier, no form needing a token, and no third-party service loaded into the page that could set one without our knowledge.

The site’s content security policy forbids loading any script, font or image from another domain. That is not an editorial promise; it is a rule your browser enforces.

Key

nexusfabric-theme

Mechanism

localStorage, not a cookie.

Value

“light” or “dark”.

When it is written

Only if you use the theme switch.

How long it stays

Until you clear it in your browser.

The difference is not a formality: a localStorage value never travels to the server, unlike a cookie, which is sent with every request. We do not read it, we cannot read it, and it cannot identify you — it is four or five letters about how dark you like the page.

If you never touch the switch, the key is not written: the site follows your operating system’s theme preference without recording it.

On the manual’s pages the browser also keeps sl-sidebar-state, in sessionStorage: which sidebar groups you opened or closed, how far the sidebar is scrolled, and a code for the sidebar’s contents that is the same for every visitor. Where the sidebar sits beside the page, the next page shows it as you left it; the value never leaves your browser and lasts only as long as the tab it was written in.

The manual used to store a key of its own, starlight-theme, in localStorage; every page of the site now deletes it without reading it.

Clear site data in your browser settings, or use a private window. The page works identically without the key; it goes back to following the system preference.

If we ever add something that sets a cookie, this page changes first and a consent mechanism appears. Until then, there is nothing to tick.

• Privacy noticeWhat data we do process.

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