<b>BREAKING: Merchants blocking coupon-extension injection at checkout</b>

<b>BREAKING: Merchants blocking coupon-extension injection at checkout</b>
We hear several large carts now detect and strip auto-applied codes injected by browser extensions, showing "this code can't be combined" even on valid public codes — a deliberate move against extension-driven last-click theft.

<b>Why it matters:</b> If your traffic relies on an extension partner for conversions, those conversions are getting silently eaten at the cart. Editorial coupon sites where the user types the code manually are, ironically, the resilient model now.

Confirmed on two checkout stacks; intent is inferred. Developing...