Disable client side page cache on some pages

src/middleware/commonHeaders.ts

@@ -13,11 +13,13 @@ export const addCommonHeadersMiddleware = defineMiddleware(async ({ url }, next)
   response.headers.set("X-Robots-Tag", "none");
   response.headers.set("Vary", "Cookie");
 
-  if (import.meta.env.CACHE_CONTROL !== "true") {
+  if (!response.headers.has("cache-control")) {
+    if (import.meta.env.CACHE_CONTROL !== "true" && !response.headers.has("cache-control")) {
       response.headers.set("Cache-Control", "no-store");
     } else {
       response.headers.set("Cache-Control", "max-age=86400, stale-while-revalidate=86400");
     }
+  }
 
   return response;
 });

src/pages/404.astro

@@ -3,6 +3,8 @@ import AppLayout from "components/AppLayout/AppLayout.astro";
 import Button from "components/Button.astro";
 import { getI18n } from "src/i18n/i18n";
 
+Astro.response.headers.set("Cache-Control", "no-store");
+
 const { t, getLocalizedUrl } = await getI18n(Astro.locals.currentLocale);
 ---
 

src/pages/500.astro

@@ -4,6 +4,8 @@ import Button from "components/Button.astro";
 import Card from "components/Card.astro";
 import { getI18n } from "src/i18n/i18n";
 
+Astro.response.headers.set("Cache-Control", "no-store");
+
 interface Props {
   error: unknown;
 }

src/pages/[locale]/discord.astro

@@ -1,3 +1,4 @@
 ---
+Astro.response.headers.set("Cache-Control", "no-store");
 return Astro.redirect("https://discord.com/invite/5mcXcRAczj");
 ---

src/pages/[locale]/search/index.astro

@@ -19,6 +19,7 @@ import { Collections } from "src/shared/payload/constants";
 import { meilisearch } from "src/services";
 
 Astro.locals.pageCaching = false;
+Astro.response.headers.set("Cache-Control", "no-store");
 
 type State = {
   q: string;