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the-daily-epub/src/web/templates/layout.html
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thalladaandClaude Fable 5.1 7d12f53314 Make the origin's Cache-Control headers CDN-safe
An audit of the live site ahead of the Cloudflare move found three ways a
cache-everything rule would have gone wrong.

First, several routes named no policy at all — `/login`, `/issues.json`,
`/files/epub/*`, `/files/xtc/*`, `/robots.txt`, the error pages — so the edge
would have applied its own default TTL (Cloudflare: two hours on a 200). For
`/files/*` that means an authenticated download becoming a publicly cached one.
Those routes now say what they mean, and `security_headers` fails closed: a
response that set no `Cache-Control` gets `no-store`, so a route added later
cannot silently inherit the CDN's default. Everything cookie- or Basic-auth
gated (`/files/*`, `/opds*`) is `private, no-store` on every response, 401s and
404s included.

Second, the public pages said `max-age=300` alone. They now say
`public, max-age=300, s-maxage=86400`: five minutes for the browser, a day for
the edge, which is safe because publishing purges the edge. A request carrying
a `daily_session=` cookie still gets `private, no-store`.

Third, `/static/favicon.svg` and `/static/speculation.json` were referenced
without `?v=` while being served `immutable` for a year — editing either one
could never have reached a browser again. Both are now in the `ASSET_VERSION`
hash and referenced with the version, and `static_asset` only promises a year
when the URL actually carries `?v=`; a bare `/static/…` URL gets an hour and
revalidates against the same ETag.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Va5eMEmWEnjMXBsBob5FDW
2026-09-04 21:28:59 +00:00

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HTML

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="{{ page.description }}">
<meta name="color-scheme" content="light dark">
<title>{{ page.title }} · The Daily EPUB</title>
{# No font preload here on purpose. Preloading the 132 KB regular face made
it share bandwidth with this 12 KB render-blocking sheet, so the sheet —
and therefore first paint — landed later: simulated FCP went from ~1.0 s
to ~1.8 s on Lighthouse mobile. The metric-matched fallbacks in
tailwind.css make waiting for the real face cost nothing visible. #}
<link rel="stylesheet" href="/static/app.css?v={{ page.asset_version }}">
{# Keep this synchronous script *after* the stylesheet: Gecko will not run a
parser-blocking script while a stylesheet is pending, so the parser stalls
here and nothing unstyled exists to paint if something forces a layout
flush (Bugzilla 1459305). Chrome blocks rendering on the sheet regardless. #}
<script src="/static/theme.js?v={{ page.asset_version }}"></script>
<link rel="alternate" type="application/atom+xml" title="The Daily EPUB" href="/feed.xml">
<link rel="icon" href="/static/favicon.svg?v={{ page.asset_version }}">
</head>
<body>
<a class="fixed left-3 top-3 z-50 -translate-y-20 bg-ink px-3 py-2 font-sans text-sm text-paper no-underline focus:translate-y-0" href="#content">Skip to content</a>
<header class="mx-auto max-w-7xl px-4 pt-4 sm:px-6 sm:pt-6">
<div class="mb-2 flex min-h-8 flex-nowrap items-center justify-between gap-2 border-b border-rule pb-2 font-sans text-[0.72rem] uppercase tracking-[0.12em] text-muted sm:gap-4">
<div class="min-w-0 truncate whitespace-nowrap">{% block ears %}{% if page.is_dashboard() %}<span>Dashboard</span>{% endif %}{% endblock %}</div>
<div class="flex shrink-0 items-center gap-2 whitespace-nowrap normal-case tracking-normal sm:gap-3">
<button class="flex min-h-10 shrink-0 items-center gap-1.5 whitespace-nowrap border-0 bg-transparent px-1.5 py-1 text-xs text-muted hover:text-ink" type="button" data-theme-toggle aria-label="Theme: system">
<svg data-theme-icon="system" aria-hidden="true" viewBox="0 0 24 24" class="h-4 w-4 fill-none stroke-current" stroke-width="1.75"><path d="M4 5.5h16v11H4zM9 20h6M12 16.5V20"/></svg>
<svg data-theme-icon="light" aria-hidden="true" viewBox="0 0 24 24" class="h-4 w-4 fill-none stroke-current" stroke-width="1.75"><circle cx="12" cy="12" r="3.5"/><path d="M12 2v2.2M12 19.8V22M4.93 4.93l1.56 1.56M17.51 17.51l1.56 1.56M2 12h2.2M19.8 12H22M4.93 19.07l1.56-1.56M17.51 6.49l1.56-1.56"/></svg>
<svg data-theme-icon="dark" aria-hidden="true" viewBox="0 0 24 24" class="h-4 w-4 fill-none stroke-current" stroke-width="1.75"><path d="M20 15.1A8.5 8.5 0 0 1 8.9 4a8.5 8.5 0 1 0 11.1 11.1Z"/></svg>
<span data-theme-label="system">System</span><span data-theme-label="light">Light</span><span data-theme-label="dark">Dark</span>
</button>
{% match page.viewer %}{% when Some with (viewer) %}<a class="flex min-h-10 min-w-10 max-w-32 shrink-0 items-center justify-center truncate whitespace-nowrap px-1.5 text-ink no-underline hover:text-accent" href="/account">{{ viewer.username }}</a>{% when None %}<a class="flex min-h-10 min-w-10 shrink-0 items-center justify-center whitespace-nowrap px-1.5 text-ink no-underline hover:text-accent" href="/login">Sign in</a>{% endmatch %}
</div>
</div>
<div class="border-b-[3px] border-double border-ink py-3 text-center sm:py-4"><a class="font-serif text-3xl font-semibold leading-none tracking-[-0.02em] text-ink no-underline hover:text-ink sm:text-5xl" href="/">The Daily EPUB</a></div>
<nav class="flex min-h-11 flex-wrap items-center justify-center gap-x-6 gap-y-1 border-b border-rule font-sans text-[0.72rem] font-medium uppercase tracking-[0.12em]" aria-label="Site">
<a class="flex min-h-11 items-center border-b-2 {% if page.active_nav == "latest" %}border-accent text-ink{% else %}border-transparent text-muted{% endif %} no-underline hover:text-ink" href="/"{% if page.active_nav == "latest" %} aria-current="page"{% endif %}>Latest</a>
<a class="flex min-h-11 items-center border-b-2 {% if page.active_nav == "archive" %}border-accent text-ink{% else %}border-transparent text-muted{% endif %} no-underline hover:text-ink" href="/issues"{% if page.active_nav == "archive" %} aria-current="page"{% endif %}>Archive</a>
<a class="flex min-h-11 items-center border-b-2 border-transparent text-muted no-underline hover:text-ink" href="/feed.xml">Feed</a>
{% match page.viewer %}{% when Some with (_) %}<a class="flex min-h-11 items-center border-b-2 {% if page.active_nav == "account" %}border-accent text-ink{% else %}border-transparent text-muted{% endif %} no-underline hover:text-ink" href="/account"{% if page.active_nav == "account" %} aria-current="page"{% endif %}>Account</a>{% when None %}<a class="flex min-h-11 items-center border-b-2 {% if page.active_nav == "login" %}border-accent text-ink{% else %}border-transparent text-muted{% endif %} no-underline hover:text-ink" href="/login"{% if page.active_nav == "login" %} aria-current="page"{% endif %}>Sign in</a>{% endmatch %}
</nav>
{% if page.is_admin() %}<nav class="flex flex-wrap items-center justify-center gap-x-4 gap-y-1 border-b border-rule font-sans text-[0.68rem] uppercase tracking-[0.1em]" aria-label="Dashboard">
<a class="flex min-h-10 min-w-10 items-center justify-center border-b-2 no-underline hover:text-ink {% if page.active_nav == "dashboard" %}border-accent text-ink{% else %}border-transparent text-muted{% endif %}" href="/dashboard"{% if page.active_nav == "dashboard" %} aria-current="page"{% endif %}>Overview</a>
<a class="flex min-h-10 min-w-10 items-center justify-center border-b-2 no-underline hover:text-ink {% if page.active_nav == "runs" %}border-accent text-ink{% else %}border-transparent text-muted{% endif %}" href="/dashboard/runs"{% if page.active_nav == "runs" %} aria-current="page"{% endif %}>Runs</a>
<a class="flex min-h-10 min-w-10 items-center justify-center border-b-2 no-underline hover:text-ink {% if page.active_nav == "articles" %}border-accent text-ink{% else %}border-transparent text-muted{% endif %}" href="/dashboard/articles"{% if page.active_nav == "articles" %} aria-current="page"{% endif %}>Articles</a>
<a class="flex min-h-10 min-w-10 items-center justify-center border-b-2 no-underline hover:text-ink {% if page.active_nav == "ratings" %}border-accent text-ink{% else %}border-transparent text-muted{% endif %}" href="/dashboard/ratings"{% if page.active_nav == "ratings" %} aria-current="page"{% endif %}>Ratings</a>
<a class="flex min-h-10 min-w-10 items-center justify-center border-b-2 no-underline hover:text-ink {% if page.active_nav == "profile" %}border-accent text-ink{% else %}border-transparent text-muted{% endif %}" href="/dashboard/profile"{% if page.active_nav == "profile" %} aria-current="page"{% endif %}>Profile</a>
<a class="flex min-h-10 min-w-10 items-center justify-center border-b-2 no-underline hover:text-ink {% if page.active_nav == "stats" %}border-accent text-ink{% else %}border-transparent text-muted{% endif %}" href="/dashboard/stats"{% if page.active_nav == "stats" %} aria-current="page"{% endif %}>Stats</a>
<a class="flex min-h-10 min-w-10 items-center justify-center border-b-2 no-underline hover:text-ink {% if page.active_nav == "jobs" %}border-accent text-ink{% else %}border-transparent text-muted{% endif %}" href="/dashboard/jobs"{% if page.active_nav == "jobs" %} aria-current="page"{% endif %}>Jobs</a>
<a class="flex min-h-10 min-w-10 items-center justify-center border-b-2 no-underline hover:text-ink {% if page.active_nav == "settings" %}border-accent text-ink{% else %}border-transparent text-muted{% endif %}" href="/dashboard/settings"{% if page.active_nav == "settings" %} aria-current="page"{% endif %}>Settings</a>
<a class="flex min-h-10 min-w-10 items-center justify-center border-b-2 no-underline hover:text-ink {% if page.active_nav == "users" %}border-accent text-ink{% else %}border-transparent text-muted{% endif %}" href="/dashboard/users"{% if page.active_nav == "users" %} aria-current="page"{% endif %}>Users</a>
</nav>{% endif %}
</header>
{% match page.flash %}{% when Some with (flash) %}<div class="mx-auto max-w-7xl px-4 sm:px-6"><div class="flash {{ flash.kind }}" role="status">{{ flash.text }}</div></div>{% when None %}{% endmatch %}
<main id="content" class="min-h-[68vh]">{% block content %}{% endblock %}</main>
<footer class="mx-auto mt-16 flex max-w-7xl flex-wrap justify-between gap-2 border-t border-rule px-4 py-6 font-sans text-[0.72rem] uppercase tracking-[0.1em] text-muted sm:px-6"><span>The Daily EPUB</span><span>daily-epub {{ page.version }}</span></footer>
<script defer src="/static/app.js?v={{ page.asset_version }}"></script>
</body>
</html>