Both fired on a healthy production cutover and told the operator to roll
back, which is worse than not checking at all.
- The DNS check looked for a CNAME on www. Once the custom domain is
attached the record is PROXIED, so it answers with Cloudflare anycast A
records and exposes no CNAME — the empty result was the correct state
being reported as "unexpected target". Now it asserts what actually
matters: the host resolves, and it does not still CNAME to Vercel. The
authoritative on-Cloudflare signal was already the cf-ray/x-vercel-id
pair right below it.
- HSTS absence was a hard FAIL. It is an independent one-toggle choice with
no bearing on whether the migration worked, so it is a WARN unless
EXPECT_HSTS=1. Set that once the zone toggle is on and it becomes a hard
assertion again.
Verified against the real cutover: 21 probes, 20 pass, 1 warn (HSTS), 0 fail.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LAmkjM7okPdScp9XLW1JVr
Vercel was doing the apex->www 308 itself (its "redirect to www" project
setting), so nothing about Cloudflare requires a redirect — the behaviour
just disappears with Vercel. Rather than rebuild it with a zone Redirect
Rule plus a proxied placeholder record, attach pcbjam.com as a SECOND
custom domain on pcbjam-site. Both hosts serve the site and the pages
already emit canonical=www, which is what consolidates them for search.
That drops the riskiest artefact in the migration. Redirect Rules are
zone-scoped and run BEFORE Workers/Pages routing, so a `contains` match
instead of `eq` would 308 app./editor./demo./api. to www — breaking the
product API, not just a marketing page. The sibling hosts are also the
reason this was worth avoiding rather than merely guarding.
APEX_MODE (lib/common.sh) selects the topology, defaulting to `serve`.
08-verify-prod.sh now dispatches through assert_apex: in serve mode it
requires the apex to answer 200 with no hop, to not be a stale Vercel
response, to declare canonical=www, and to expose /api/waitlist. The
`redirect` mode and 07's rules/apex phases are kept for the alternative.
08 also checks the attached domains via wrangler rather than the REST API,
so the whole serve-mode path needs only `wrangler login` — no zone scopes
at all.
Comments that explained themselves via the old redirect are corrected:
astro.config.mjs, web/standalone/src/lib/config.ts and
scripts/deploy/build-demo.mjs. The demo keeps posting to www — not because
the apex redirects, but because a CORS preflight cannot follow one, so
aiming at a host that might ever redirect is a latent breakage.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LAmkjM7okPdScp9XLW1JVr
`wrangler login` yields an OAuth token that wrangler uses itself but that
cannot be replayed as a REST bearer token, and it only carries zone:read.
03 and 06 were reaching for the REST API for things wrangler can answer,
so they died on a missing CLOUDFLARE_API_TOKEN even though every Pages
operation they needed was already authorised.
03 now reads `pages project list --json` for existence and the Git
provider, and proves the production branch EMPIRICALLY from
`pages deployment list --environment production` — if a deployment on
that branch is labelled Production, the setting must be right. That is a
stronger check than reading the field, which the REST endpoint would have
given us. 06 resolves the production deployment the same way.
cf_have_token() marks the boundary, and cf_token() now explains why a
login is not sufficient for the DNS/ruleset/HSTS phases of 07.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LAmkjM7okPdScp9XLW1JVr
`command -v vercel` gated the check on a global install that nobody here
has — this repo always invokes it as `npx vercel`. The probe was silently
skipped, so preflight never confirmed the three env-var names that
04-set-secrets.sh needs to carry over. SKIP_VERCEL_CHECK=1 opts out.
Names only; values are never read or printed.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LAmkjM7okPdScp9XLW1JVr
www.pcbjam.com was the last piece of the stack on Vercel. It is now a
Cloudflare Pages project (pcbjam-site) deployed by deploy-site.yml on
every push to main touching site/** — content must not wait for a
release tag.
The Astro adapter is gone entirely: the build is pure static and the one
dynamic route, /api/waitlist, is a Pages Function. Going adapter-free
(rather than swapping in @astrojs/cloudflare, which has dropped Pages
support and only targets Workers) removes three problems at once — no
Astro/adapter major-version coupling, Footer.astro's build-time execSync
keeps working because prerendering stays in Node, and image optimisation
stays plain build-time sharp with no Cloudflare Images binding.
Verified against a real Pages runtime (wrangler pages dev): 21/21 parity
probes pass, versus 19/21 on live Vercel. The scripted runbook is in
deploy/site/ — every mutating step is dry-run by default.
Four behaviour differences were found by measurement and are handled here:
- The blog post's COOP/COEP was already broken in production. vercel.json
scoped the headers to the bare URL, but the page's own canonical is the
trailing-slash form, which served 200 with no isolation headers — so
search arrivals lost SharedArrayBuffer and the embedded Gerber viewer
degraded. public/_headers covers both forms.
- Pages answers unknown URLs with the homepage at HTTP 200 when the
output has no 404.html — a soft-404 that invites indexing junk URLs as
the homepage. Hence src/pages/404.astro.
- Vercel's edge refused cross-site form POSTs ("Cross-site POST form
submissions are forbidden"); Pages does not, and a cross-site <form>
submit needs no CORS permission to be sent, so the allowlist cannot
stop it. The Function reproduces the guard; JSON posts stay exempt as
that is demo.pcbjam.com's allowlisted path.
- Cache-Control: immutable on /_astro/* came from the Vercel adapter's
generated route config, so it is now an explicit _headers rule.
Secrets move to `wrangler pages secret put --project-name pcbjam-site`
(RESEND_API_KEY, RESEND_SEGMENT_ID, WAITLIST_FROM_EMAIL);
WAITLIST_ALLOWED_ORIGINS stays unset so the allowlist stays in code.
Local dev reads .dev.vars, now gitignored — the root repo's **/.dev.vars
does not cover a nested git repo.
privacy.md and cookies.md named Vercel as a GDPR Art. 28 processor; those
mentions are removed and the existing Cloudflare entry widened to cover
website hosting.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LAmkjM7okPdScp9XLW1JVr
