I'm trying Paypal checkout with HTML/Node.js on Apache with all the files on https://developer.paypal.com/studio/checkout/standard/integrate and proper sandbox credentials. Still, i get status 403 Forbidden (Referrer Policy strict-origin-when-cross-origin) error on calling GET .../api/orders/ and subsequently SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data in client/app.js:39
