QRCode code length overflow error on presentation

[millenc]

When I access the verifier app (through https://<mydomain>/verifier) and click on the Access to Telco Portal I get the following JS error:

 Uncaught (in promise) Error: code length overflow. (1556>1056)
    createData https://cdn.jsdelivr.net/gh/davidshimjs/qrcodejs@gh-pages/qrcode.min.js:1
    makeImpl https://cdn.jsdelivr.net/gh/davidshimjs/qrcodejs@gh-pages/qrcode.min.js:1
    getBestMaskPattern https://cdn.jsdelivr.net/gh/davidshimjs/qrcodejs@gh-pages/qrcode.min.js:1
    make https://cdn.jsdelivr.net/gh/davidshimjs/qrcodejs@gh-pages/qrcode.min.js:1
    makeCode https://cdn.jsdelivr.net/gh/davidshimjs/qrcodejs@gh-pages/qrcode.min.js:1
    requestPresentation https://<redacted>/verifier/js/index.js:36

The API request to get the QR code's contents works as expected and returns a URI such as:

{
  "requestId": "<request id redacted>",
  "url": "openid-vc://?request_uri=https://verifiedid.did.msidentity.com/v1.0/tenants/<tenant id redacted>/verifiableCredentials/presentationRequests/<request id redacted>",
  "expiry": 1683187032
}

This error has already been reported on the davidshimjs/qrcodejs project on the following open issue:

davidshimjs/qrcodejs#78

Apparently, the cause is passing strings between 192 and 220 characters, which makes sense since the request URI is exactly 192 characters long. The suggested workarounds are:

1. Add the correctLevel: QRCode.CorrectLevel.L parameter to the QRCode() constructor call
2. Swap the davidshimjs/qrcodejs library which is currently unmaintained with a maintained fork such as: KeeeX/qrcodejs

I've tested both and 1. didn't work for me. Using the KeeeX/qrcodejs fork did however and the QR code shows fine. I've made the change on my own fork:

millenc@0fad7b4

Is this error happening for somebody else? Should we update the library?

[embesozzi]

I haven't encountered this error before. However, I will review the proposed workaround and include it in the demo.