diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1dd2c973..e4b9cf6a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,10 @@
-## Version 1.3.9 - in dev
+## Version 1.4.2 
+
+## Updates 
+
+- A script in an iframe opened by another script can use the IFrame API.
+
+## Version 1.4.0
 
 ### BREAKING CHANGES
 
diff --git a/maps/tests/Metadata/cowebsiteAllowApi.html b/maps/tests/Metadata/cowebsiteAllowApi.html
index ded7193e..b9affd75 100644
--- a/maps/tests/Metadata/cowebsiteAllowApi.html
+++ b/maps/tests/Metadata/cowebsiteAllowApi.html
@@ -12,7 +12,9 @@
     <body>
     <p>Website opened by script.</p>
         <script>
-            WA.sendChatMessage('The iframe opened by a script works !', 'Mr Robot');
+            window.addEventListener('load', () => {
+                WA.sendChatMessage('The iframe opened by a script works !', 'Mr Robot');
+            })
         </script>
     </body>
 </html>
\ No newline at end of file
diff --git a/maps/tests/index.html b/maps/tests/index.html
index 9c95c281..b7e88925 100644
--- a/maps/tests/index.html
+++ b/maps/tests/index.html
@@ -90,6 +90,14 @@
                     <a href="#" class="testLink" data-testmap="help_camera_setting.json" target="_blank">Test the HelpCameraSettingScene</a>
                 </td>
             </tr>
+            <tr>
+                <td>
+                    <input type="radio" name="test-cowebsite-allowAPI"> Success <input type="radio" name="test-cowebsite-allowAPI"> Failure <input type="radio" name="test-cowebsite-allowAPI" checked> Pending
+                </td>
+                <td>
+                    <a href="#" class="testLink" data-testmap="Metadata/cowebsiteAllowApi.json" target="_blank">Test a iframe opened by a script can use Iframe API</a>
+                </td>
+            </tr>
         </table>
 
         <script>
