WC-4389 Reduce ttl to 10s for asset-worker

Author: WillTaylorDev

.changeset/bright-eggs-draw.md

@@ -0,0 +1,5 @@
+---
+"@cloudflare/workers-shared": patch
+---
+
+The asset-worker now uses a shorter 10-second TTL for cached assets, down from 60 seconds. This ensures that asset updates are reflected more quickly during development and deployment, reducing the window where stale assets might be served.

packages/workers-shared/asset-worker/src/utils/kv.ts

@@ -23,11 +23,11 @@ export async function getAssetWithMetadataFromKV(
 			);
 
 			if (asset.value === null) {
-				// Don't cache a 404 for a year by re-requesting with a minimum cacheTtl
+				// Don't cache a 404 for a year by re-requesting with a short cacheTtl
 				const retriedAsset =
 					await assetsKVNamespace.getWithMetadata<AssetMetadata>(assetKey, {
 						type: "stream",
-						cacheTtl: 60, // Minimum value allowed
+						cacheTtl: 10,
 					});
 
 				if (retriedAsset.value !== null && sentry) {

packages/workers-shared/asset-worker/tests/kv.test.ts

@@ -78,7 +78,7 @@ describe("[Asset Worker] Fetching assets from KV", () => {
 			expect(spy).toHaveBeenCalledTimes(2);
 		});
 
-		it("should retry on 404 and cache with 30s ttl", async () => {
+		it("should retry on 404 with short cache ttl", async () => {
 			let attempts = 0;
 			spy.mockImplementation(() => {
 				if (attempts++ === 0) {