delete smart placement, update caching policy

now cache-control is visible, content will be cached 30s in local and 12h at edge

src/handler.ts

@@ -11,8 +11,6 @@ export default async function checkCache(request: Request): Promise<Response> {
       await cache.put(request.url, response.clone());
     }
     response = new Response(response.body, response);
-    response.head
-    response.headers.delete('Cache-Control');
     response.headers.append('X-Response-Time', timeNow() - now);
     return response;
   } else {

src/helpers.ts

@@ -22,8 +22,10 @@ export default async function serveResult(request: Request): Promise<Response> {
     headers: {
       'Access-Control-Allow-Origin': '*',
       'Access-Control-Allow-Methods': 'GET, HEAD',
-      'Access-Control-Expose-Headers': 'X-Response-Time, X-Powered-By',
-      'Cache-Control': 'max-age=43200, proxy-revalidate, immutable',
+      'Access-Control-Expose-Headers': 'Age, X-Powered-By, X-Response-Time',
+      'Age': 0,
+      'CF-Cache-Status': 'MISS',
+      'Cache-Control': 'public, max-age=30, s-maxage=43200, proxy-revalidate, immutable',
       'Content-Type': 'application/json; charset=utf-8',
       'X-Powered-By': '@ihsangan/valid'
     }

wrangler.toml

@@ -1,6 +1,4 @@
 name = "validator"
 main = "./src/index.ts"
 workers_dev = true
-compatibility_date = "2022-01-01"
-[placement]
-mode = "smart"
+compatibility_date = "2022-01-01"