Need help printing QR code

Hi All ,

I am planning to generate a QR code which would link my sales order , with the below code , but it generates a QR code where if I decode only it is showing http , could anyone guide me please ?

I referred this post

<img src="{{ }}">

Thanks in advance

Please close this thread. Thanks

In case you found solution, please post it here to help other potential searchers in future. Thanks.

Thanks to @spa, here us solution:

<img src="{{}}&amp;size=5&amp;ecclevel=2" draggable="false">