Why does a QR Code with a Yourls url go to two different locations?

Question

I created a qr code with this url generated from yourls installed on my server,

http://transaction-realty.com/yourls/3

which should take the visitor to

https://stackoverflow.com/

but for some people who view it instead of redirecting to where they should, they end up at http://transaction-realty.com/yourls/3 the yourls generation page, without redirecting to the appropriate page.

Any suggestions greatly appreciated.

qr code with yourls url below

Answer 1

This is nothing to do with the QR code, and everything to do with the browser that handles the URL. If it did not redirect, then the browser failed to handle the redirect, or it didn't receive it, or it did but was unable to continue to the destination URL.