8 Troubleshooting
These topics cover some common issues and how to address them.
Resolving the error “Page cannot be previewed”
If you're having trouble seeing the preview of your app extension page in the Page Designer, you might need to check your browser settings to make sure that the browser isn't blocking your VB Studio instance from accessing your Oracle Cloud Application instance. This can happen when the instances are not in the same host domain and your Chrome browser's settings are set to the default.
You might see something like this in the Page Designer instead of seeing the app extension page:
To resolve this page preview error, you'll need to edit some of your Chrome browser settings.
After restarting your browser, you can open chrome://version/
in your browser and check the Command Line properties to confirm that "SameSite by default cookies" is disabled.