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lora.vegas/static/_headers
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Add a Cloudflare Pages _headers file with security headers (closes #14)
Hugo copies static/ verbatim into public/, so static/_headers lands at
the deploy output root, which is where Pages reads it from. This is the
first root-level static/ in the repo; Hugo unions it with the theme's
static/ per path rather than shadowing it, and the built tree confirms
that: public/css/style.css and public/index.html are byte-identical to
the previous build and the static file count goes from 1 to 2.

The live "before" was measured rather than assumed. Cloudflare already
sends X-Content-Type-Options and Referrer-Policy by default, so those
two lines are restatements; the substance is Strict-Transport-Security,
Content-Security-Policy, X-Frame-Options and Permissions-Policy, none of
which the site sends today.

Every value is checked against the built page, which loads nothing: no
script, img, link, iframe, form or media element, no style= and no on*=
attribute. It has exactly one inline <style> block, filled by readFile
in baseof.html. So default-src 'none' with style-src 'unsafe-inline' is
both achievable and tight, and 'unsafe-inline' is required by, and only
by, that deliberate inlining. There is no script-src allowance because
there are no scripts. X-Frame-Options: DENY and frame-ancestors 'none'
agree.

HSTS carries neither preload nor includeSubDomains. www.lora.vegas is
the only other name in DNS and it is served by this same Pages project,
so this file sets HSTS on its responses directly; includeSubDomains
would instead bind every future subdomain for a year, with no way to
walk it back inside the max-age window without also dropping the apex
protection.

Verified in a headless Chrome against a local server that parses the
committed _headers and applies it as real response headers: zero CSP
violations, the inlined stylesheet parses to 17 rules with the computed
body padding, tagline colour and link colour all coming from the theme
CSS, framing from another origin refused by frame-ancestors, and all
five named outbound links still navigating with status 200.

Whether Pages actually parses the file cannot be verified from here.
Pages silently ignores a malformed _headers, so the green build proves
nothing about it; that check belongs after the next deploy and must be
made on Strict-Transport-Security or Content-Security-Policy, since
X-Content-Type-Options would pass either way. It has to be run against
both lora.vegas and www.lora.vegas: dropping includeSubDomains rests on
www being served by this same Pages project, which was established from
identical response bodies rather than from the Cloudflare dashboard.
2026-08-09 17:01:59 +00:00

2.2 KiB