QRcode image always 'display:none' in some android high versions · Issue #219 · davidshimjs/qrcodejs · GitHub

the Regular Expression (/android ([0-9].[0-9])/i) not working for some android versions. maybe try '/android ([0-9]+(.[0-9])?)/i' ?

Wrong aspectRatio displayed on mobile (Android & iOS) · Issue #387 · mebjas/html5-qrcode · GitHub

30 New Android Libraries released in the Spring of 2017 which deserve your attention

qrcode-generator · GitHub Topics · GitHub

HTML5 QR Code scanning with javascript - launched v1.0.1 Minhaz's Blog · Issue #3 · mebjas/mebjas.github.io · GitHub

Playing around with QR Codes

Wrong aspectRatio displayed on mobile (Android & iOS) · Issue #387 · mebjas/html5-qrcode · GitHub

Information capacity and versions of QR Code

How to Quickly Generate a QR Code for Any Webpage with Google Chrome « Gadget Hacks

Generating and displaying QR codes on Android Wear devices

Empty QR Code on multiple new Qrious() · Issue #107 · neocotic/qrious · GitHub