I've a apple pay integration on my website. The new sdk, that allows third party browsers.
My integration works well everywhere, except on third party when I read the QR code it results in a "payment incomplete".
I have gone through several threads in apple dev forums, and several guides on implementation steps and troubleshooting. But I'm still without solution.
When Debugging in iOS device I get: "Application failed to provide a valid merchant session. We can't proceed to authorize the transaction."
I've doublechecked, the values I send to create the payment Session are correct, the domain and merchantIds. (It works well with the same implementation on safari, what's the difference here?)
I've also doublechecked the values i'm sending to the completeMerchantValidation, and they are all in the right format and types.
What else can iIcheck?