unjs
diff --git a/‎docs/nuxt.config.ts‎
Lines changed: 0 additions & 7 deletions b/‎docs/nuxt.config.ts‎
Lines changed: 0 additions & 7 deletions
diff --git a/‎docs/server/api/v1/fonts/[family]/index.get.ts‎
Lines changed: 7 additions & 2 deletions b/‎docs/server/api/v1/fonts/[family]/index.get.ts‎
Lines changed: 7 additions & 2 deletions
@@ -49,15 +49,9 @@ const vercelMarkdownRoutes = [
   headers: { vary: 'Accept, Accept-Encoding' },
 }))
 
-/** The facets a family can be narrowed by, which a cache of one has to key on. */
-const familyFacets = ['weights', 'subsets', 'styles', 'provider']
-
 /** A day: a family's faces change when a provider republishes it, and a deployment resets this. */
 const DAY = 60 * 60 * 24
 
-// The endpoint answers in a format as well, which the page does not ask about.
-const familyEntry = { expiration: DAY, allowQuery: [...familyFacets, 'formats'] }
-
 /**
  * Where the font caches live. `node_modules` is convenient in development but read-only on most
  * deployment platforms, where the temporary directory is the one writable path.
@@ -149,7 +143,6 @@ export default defineNuxtConfig({
       '/api/v1/**': { headers: { link: '</openapi.json>; rel="service-desc"; type="application/json"' } },
       '/api/v1/catalogue.css': { headers: { 'cache-control': 'public, max-age=3600, stale-while-revalidate=86400' } },
       '/fonts/**': { headers: { 'cache-control': `public, s-maxage=${DAY}, stale-while-revalidate=${DAY}` } },
-      '/api/v1/fonts/*': { isr: familyEntry },
     },
     prerender: {
       routes: staticRoutes,
 
@@ -42,8 +42,13 @@ export default defineEventHandler(async (event) => {
   const fallbackCss = await metricFallbackCss(family, resolved.fonts, resolved.fallbacks ?? [])
   const entry = await lookupFamily(family)
 
-  // Long enough that a hover prefetch and the navigation behind it are one request.
-  event.res.headers.set('cache-control', 'public, max-age=300, stale-while-revalidate=3600')
+  /*
+   * Long enough that a hover prefetch and the navigation behind it are one request, and long
+   * enough at the edge to answer for a family no provider has republished. A header rather than an
+   * `isr` route rule: that rewrites the request to a URL carrying no query string, so every
+   * narrowed facet is answered with the defaults.
+   */
+  event.res.headers.set('cache-control', 'public, max-age=300, s-maxage=86400, stale-while-revalidate=86400')
 
   return {
     family,