1. Qt.btoa () return Base64 code for Uint8Array  in qml project when running qml by external tool qml.exe

       var bytes2 = new Uint8Array([0x47, 0x49, 0x46, 0x38, 0x37, 0x61, 0x01, 0x00, 0x01, 0x00, 0xF0, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2C, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x02, 0x02, 0x44, 0x01, 0x00, 0x3B])
           var binaryString = ''
           for (var i = 0; i < bytes2.byteLength; i++) {
                binaryString += String.fromCharCode(bytes2[i])
            }
           console.log(Qt.btoa(binaryString))
   

   Debug: R0lGODdhAQABAMOwAADDvwAAAAAALAAAAAABAAEAAAICRAEAOw==

it is error 

run the code on other software and web like " https://www.wetools.com/js-run"

https://base64.guru/developers/javascript/examples/encode-remote-file

just change Qt.batoa to "btoa" console.log(btoa(binaryString))
R0lGODdhAQABAPAAAP8AAAAAACwAAAAAAQABAAACAkQBADs=

1. Mr. Ulf Hermann  have fixed this bug in qt  QML: Declarative and Javascript Engine , PLS refer  QTBUG-135329, but the fix is only for QT.611 , so any new QDS will still  has this bug untill QDS(qml.exe) build by QT6.11
2. Could QDS team include the fix code to build QDS4.8?