discard expired entries in the kvCache get

Author: dario-piotrowicz

packages/cloudflare/src/api/kvCache.ts

@@ -62,6 +62,21 @@ class Cache implements IncrementalCache {
           };
         }
       }
+
+      const entryValue = entry?.value as Record<string, unknown>;
+      if (entryValue.kind === "FETCH") {
+        const data = (entryValue.data as Record<string, string> | undefined)?.headers as
+          | Record<string, string>
+          | undefined;
+        const expires = data?.expires;
+        const expiresTime = new Date(expires as string).getTime();
+        if (!isNaN(expiresTime) && expiresTime <= new Date().getTime()) {
+          this.debug(entry ? `-> hit` : `-> miss`);
+          // the entry is expired, so let's ignore it
+          entry = null;
+        }
+      }
+
       this.debug(entry ? `-> hit` : `-> miss`);
       return { value: entry?.value, lastModified: entry?.lastModified };
     } catch {