diff --git a/src/workerd/api/http-test-ts.ts b/src/workerd/api/http-test-ts.ts
index 69566f194fd..03f8e46a7ff 100644
--- a/src/workerd/api/http-test-ts.ts
+++ b/src/workerd/api/http-test-ts.ts
@@ -32,23 +32,28 @@ async function assertFetchCacheRejectsError(cacheHeader: RequestCache,
 
 export const cacheMode = {
 
-  async test() {
-    assert.strictEqual("cache" in Request.prototype, false);
+  async test(ctrl: any, env: any, ctx: any) {
+    let allowedCacheModes: Array<RequestCache> =
+      ["default", "force-cache", "no-cache", "no-store", "only-if-cached", "reload"];
+    assert.strictEqual("cache" in Request.prototype, env.CACHE_ENABLED);
     {
       const req = new Request('https://example.org', {});
       assert.strictEqual(req.cache, undefined);
     }
-    assertRequestCacheThrowsError('default');
-    assertRequestCacheThrowsError('force-cache');
-    assertRequestCacheThrowsError('no-cache');
-    assertRequestCacheThrowsError('no-store');
-    assertRequestCacheThrowsError('only-if-cached');
-    assertRequestCacheThrowsError('reload');
-    assertFetchCacheRejectsError('default');
-    assertFetchCacheRejectsError('force-cache');
-    assertFetchCacheRejectsError('no-cache');
-    assertFetchCacheRejectsError('no-store');
-    assertFetchCacheRejectsError('only-if-cached');
-    assertFetchCacheRejectsError('reload');
+    if(!env.CACHE_ENABLED) {
+      for(var cacheMode of allowedCacheModes) {
+        await assertRequestCacheThrowsError(cacheMode);
+        await assertFetchCacheRejectsError(cacheMode);
+      }
+    } else {
+      for(var cacheMode of allowedCacheModes) {
+        await assertRequestCacheThrowsError(cacheMode,
+          'TypeError',
+          'Unsupported cache mode: ' + cacheMode);
+        await assertFetchCacheRejectsError(cacheMode,
+          'TypeError',
+          'Unsupported cache mode: ' + cacheMode);
+      }
+    }
   }
 }
diff --git a/src/workerd/api/http-test-ts.ts-wd-test b/src/workerd/api/http-test-ts.ts-wd-test
index 4b7847bec79..afa520fc2c1 100644
--- a/src/workerd/api/http-test-ts.ts-wd-test
+++ b/src/workerd/api/http-test-ts.ts-wd-test
@@ -8,10 +8,24 @@ const unitTests :Workerd.Config = (
           ( name = "worker", esModule = embed "http-test-ts.js" )
         ],
         bindings = [
-          ( name = "SERVICE", service = "http-test" )
+          ( name = "SERVICE", service = "http-test" ),
+          ( name = "CACHE_ENABLED", json = "false" ),
         ],
         compatibilityDate = "2023-08-01",
-        compatibilityFlags = ["nodejs_compat", "service_binding_extra_handlers"],
+        compatibilityFlags = ["nodejs_compat", "service_binding_extra_handlers", "cache_option_disabled"],
+      )
+    ),
+    ( name = "http-test-cache-option-enabled",
+      worker = (
+        modules = [
+          ( name = "worker-cache-enabled", esModule = embed "http-test-ts.js" )
+        ],
+        bindings = [
+          ( name = "SERVICE", service = "http-test-cache-option-enabled" ),
+          ( name = "CACHE_ENABLED", json = "true" ),
+        ],
+        compatibilityDate = "2023-08-01",
+        compatibilityFlags = ["nodejs_compat", "service_binding_extra_handlers", "cache_option_enabled"],
       )
     ),
   ],
diff --git a/src/workerd/api/http-test.js b/src/workerd/api/http-test.js
index 4186d345383..24d5dd01593 100644
--- a/src/workerd/api/http-test.js
+++ b/src/workerd/api/http-test.js
@@ -261,37 +261,37 @@ export const cacheMode = {
       assert.strictEqual(req.cache, undefined);
     }
     if(!env.CACHE_ENABLED) {
-      assertRequestCacheThrowsError('no-store');
-      assertRequestCacheThrowsError('no-cache');
-      assertRequestCacheThrowsError('no-transform');
-      assertRequestCacheThrowsError('unsupported');
-      assertFetchCacheRejectsError('no-store');
-      assertFetchCacheRejectsError('no-cache');
-      assertFetchCacheRejectsError('no-transform');
-      assertFetchCacheRejectsError('unsupported');
+      await assertRequestCacheThrowsError('no-store');
+      await assertRequestCacheThrowsError('no-cache');
+      await assertRequestCacheThrowsError('no-transform');
+      await assertRequestCacheThrowsError('unsupported');
+      await assertFetchCacheRejectsError('no-store');
+      await assertFetchCacheRejectsError('no-cache');
+      await assertFetchCacheRejectsError('no-transform');
+      await assertFetchCacheRejectsError('unsupported');
     } else {
-      assertRequestCacheThrowsError('no-store',
+      await assertRequestCacheThrowsError('no-store',
         'TypeError',
         "Unsupported cache mode: no-store");
-      assertRequestCacheThrowsError('no-cache',
+      await assertRequestCacheThrowsError('no-cache',
         'TypeError',
         "Unsupported cache mode: no-cache");
-      assertRequestCacheThrowsError('no-transform',
+      await assertRequestCacheThrowsError('no-transform',
         'TypeError',
         "Unsupported cache mode: no-transform");
-      assertRequestCacheThrowsError('unsupported',
+      await assertRequestCacheThrowsError('unsupported',
         'TypeError',
         "Unsupported cache mode: unsupported");
-      assertFetchCacheRejectsError('no-store',
+      await assertFetchCacheRejectsError('no-store',
         'TypeError',
         "Unsupported cache mode: no-store");
-      assertFetchCacheRejectsError('no-cache',
+      await assertFetchCacheRejectsError('no-cache',
         'TypeError',
         "Unsupported cache mode: no-cache");
-      assertFetchCacheRejectsError('no-transform',
+      await assertFetchCacheRejectsError('no-transform',
         'TypeError',
         "Unsupported cache mode: no-transform");
-      assertFetchCacheRejectsError('unsupported',
+      await assertFetchCacheRejectsError('unsupported',
         'TypeError',
         "Unsupported cache mode: unsupported");
     }