Why does discount code on URL not work?

[richardtheu]

Example, the below URL resolves and discount is applied to basket

https://botsonic.co.za/55904829538/checkouts/ac/fb256ceb359cd925bf33e0e0fd13a5ea/recover?key=a8c9ee2... 

When redirect is added to the above URL, the discount is ignored and not added to basket. 

https://app.botsonic.co.za/refer?url=https://botsonic.co.za/55904829538/checkouts/ac/fb256ceb359cd92... 

Why? Bug? 

[richardtheu]

We found the issue... 

Instead of passing  "...&discount=discountCode" you must use "...&discount=discountCode"