Adding an event listener

Errors in the payment forms can be handled by adding an event listener to the window.

For example, you can add the following script to your web page:

Example
window.addEventListener('message', function messageListener(event) {
    if (event.origin === iframeDomain) {
        if (event.data.event === 'error' || event.data.event === 'success' || event.data.event === 'processed') {
        // handle success or error messages
        }
        if (event.data.event === 'loaded') {
        //handle form loaded state
        }
        if (event.data.event === 'cardSaved') {
        //handle cardSaved
        }
        console.log(event.data.event);
    }
});

See also


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