diff --git a/src/storage/utils/object.js b/src/storage/utils/object.js
index 0fd856ae..a095e8a8 100644
--- a/src/storage/utils/object.js
+++ b/src/storage/utils/object.js
@@ -10,6 +10,11 @@
  * governing permissions and limitations under the License.
  */
 export async function invalidateCollab(api, url, env) {
+  if (!url.endsWith('.html')) {
+    // collab only deals with .html files, no need to invalidate anything else
+    return;
+  }
+
   const invPath = `/api/v1/${api}?doc=${url}`;
 
   // Use dacollab service binding, hostname is not relevant
diff --git a/test/storage/utils/object.test.js b/test/storage/utils/object.test.js
new file mode 100644
index 00000000..52a1e9cc
--- /dev/null
+++ b/test/storage/utils/object.test.js
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2025 Adobe. All rights reserved.
+ * This file is licensed to you under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License. You may obtain a copy
+ * of the License at http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under
+ * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
+ * OF ANY KIND, either express or implied. See the License for the specific language
+ * governing permissions and limitations under the License.
+ */
+
+/* eslint-env mocha */
+import assert from 'assert';
+import { invalidateCollab } from '../../../src/storage/utils/object.js';
+
+describe('Storage Object Utils tests', () => {
+  function setupEnv() {
+    const called = [];
+    const dacollab = {
+      fetch: async (url) => {
+        console.log(`invalidate called with ${url}`);
+        called.push(url);
+      },
+    };
+    const env = { dacollab };
+    return { called, env };
+  }
+
+  it('Should invalidate', async () => {
+    const { called, env } = setupEnv();
+
+    assert.strictEqual(called.length, 0, 'precondition');
+    await invalidateCollab('syncAdmin', 'https://admin.da.live/source/a/b/c.html', env);
+    assert.strictEqual(called.length, 1);
+    assert.strictEqual(called[0], 'https://localhost/api/v1/syncAdmin?doc=https://admin.da.live/source/a/b/c.html');
+  });
+
+  it('Should not invalidate non-html documents', async () => {
+    const { called, env } = setupEnv();
+
+    assert.strictEqual(called.length, 0, 'precondition');
+    await invalidateCollab('syncAdmin', 'https://admin.da.live/source/a/b/c.jpg', env);
+    await invalidateCollab('syncAdmin', 'https://admin.da.live/source/a/b/c/d', env);
+    assert.strictEqual(called.length, 0, 'should not have invalidated anything');
+  });
+});