Not working with better camera's

[vlassie66]

First let me say that the scanner is great.
We use the scanner for our drivers to scan return items from customers.
Some drivers have their own phones and that's where things go wrong.
Half of the phones don't work properly with the scanner
These phones don't recognized the barcode.
They are usually the IPhones or the Phones with the better camera's.
Where should I look to get it working?

Working: Oppo A91.
Not working. Iphone 13.

docReady(function() {
var lastResult, countResults = 0;
var qrboxFunction = function(viewfinderWidth, viewfinderHeight) {
// Square QR Box, with size = 80% of the min edge.
var minEdgeSizeThreshold = 250;
var edgeSizePercentage = 0.8;
var minEdgeSize = (viewfinderWidth > viewfinderHeight) ?
viewfinderHeight : viewfinderWidth;
var qrboxEdgeSize = Math.floor(minEdgeSize * edgeSizePercentage);
if (qrboxEdgeSize < minEdgeSizeThreshold) {
if (minEdgeSize < minEdgeSizeThreshold) {
return {width: minEdgeSize, height: minEdgeSize};
} else {
return {
width: minEdgeSizeThreshold,
height: minEdgeSizeThreshold
};
}
}
return {width: qrboxEdgeSize, height: qrboxEdgeSize};
}
let html5QrcodeScanner = new Html5QrcodeScanner(
"reader",
{
fps: 10,
qrbox: qrboxFunction,
disableFlip: false,
focusMode: "continuous",
rememberLastUsedCamera: true,
aspectRatio: 1.0,
experimentalFeatures: {
useBarCodeDetectorIfSupported: true
}
});
function onScanSuccess(decodedText, decodedResult) {
if (decodedText !== lastResult) {
++countResults;
lastResult = decodedText;
ToAGP(decodedText);
}
}
html5QrcodeScanner.render(onScanSuccess);
});