cors invalid client strict-origin-when-cross-origin code example

Example: conflict paypal api javascript with user agent Mozilla/5.0 Google

//You must to update the PayPal script to the new URL with SDK
//all documentation with the upgrade in
//https://developer.paypal.com/docs/checkout/reference/upgrade-integration/
<script src="https://www.paypal.com/sdk/js?client-id=YOUR_CLIENT_ID"></script>