applicationData
A Base64-encoded string for application-specific data.
Declaration
DOMString applicationData;Discussion
Use this property to contain additional data as may be appropriate for your website. For example, the application data may be a shopping cart identifier or an order number that your back end needs to identify this transaction.
You’re responsible for sending the full application data to your server, if needed.
The applicationData string must be Base64-encoded; otherwise, the system ignores it.