I have a problem here. Here is my sample code:
https://api.whatsapp.com/send?phone=[International Ph. Number]&text=GoodMorning!
Copy the following codes and insert into any browser and change the [International Ph. Number] to any international phone number. What's the problem here is when showing in the api.whatsapp.com, they were fine but when passing into https://web.whatsapp.com/ all my uppercase turned into lowercase! I even tried url encoding such as the % still doesn't work for me.