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fix(seo): use body H1 as case-file <title> and OG title

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generateMetadata still derived the page <title>/OG title from the generic
auto frontmatter topic ("Dow Uap D44 …"). Search engines, link cards, and
AI crawlers show that string, so it must be the human magazine headline the
narrator wrote as the body H1. Mirror the page component's H1 extraction.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Luiz Gustavo 2026-05-25 04:09:15 -03:00
parent aaf5618466
commit e45f1c04d0
1 changed files with 8 additions and 1 deletions
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9
web/app/c/[slug]/page.tsx
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@ -81,7 +81,14 @@ export async function generateMetadata(
const c = await loadCase(slug); const c = await loadCase(slug);
if (!c) return { title: "Case file not found" }; if (!c) return { title: "Case file not found" };
const title = locale === "pt-br" ? (c.fm.topic_pt_br ?? c.fm.topic ?? slug) : (c.fm.topic ?? slug); // Prefer the narrator's body H1 (the magazine headline) over the generic
// auto-derived frontmatter topic ("Dow Uap D44 …"). This is what search
// engines and link cards show, so it must be the human title. Two H1s when
// present: EN then PT-BR; fall back across them, then to frontmatter.
const h1s = [...c.body.matchAll(/^#\s+(.+)$/gm)].map((m) => m[1].trim());
const title = locale === "pt-br"
? (h1s[1] ?? h1s[0] ?? c.fm.topic_pt_br ?? c.fm.topic ?? slug)
: (h1s[0] ?? c.fm.topic ?? slug);
const desc = pickLead(c.body, locale).slice(0, 200); const desc = pickLead(c.body, locale).slice(0, 200);
const canonical = `${SITE_URL}/c/${slug}`; const canonical = `${SITE_URL}/c/${slug}`;
// OG image — use the case's editorial illustration when present. WhatsApp, // OG image — use the case's editorial illustration when present. WhatsApp,