This is a solution to the QR code component challenge on Frontend Mentor. Frontend Mentor challenges help you improve your coding skills by building realistic projects. Basically I had a look at the ...

QR codes are everywhere these days, from being printed onto receipts to chiseled into granite tombstones. [Will] came up with a way to modify existing QR codes, and his hack has the potential to ca… ...

The team had other tricks up their sleeve though – they knew the QR contained a private key of a particular format, and were able to figure out the QR code was 41×41 pixels.

Now, just about every phone, including Google’s Pixel lineup, has a QR scanner built-in, but according to a recent report, Google’s phones have been misreading some codes.