This is my config:
var html5QrcodeScanner = new Html5QrcodeScanner(
"reader", {
fps: 10,
qrbox: { width: 400, height: 400 },
formatsToSupport: [ Html5QrcodeSupportedFormats.PDF_417 ],
experimentalFeatures: { useBarCodeDetectorIfSupported: true },
useBarCodeDetectorIfSupported: true
});
I looked for a lot of libraries but none work.