PushNotifcation and arabic lettters


I’m using HTTP/2 API method , but have problem with arabic letters , as it appears as questions marks …

is there any thing i can do , i’m using web api using header

client.Headers.Add(“accept”, “application/json”);
client.Headers.Add(“accept-encoding”, “gzip, deflate”);
client.Headers.Add(“Content-Type”, “application/json;charset=UTF-8”);


What do you mean, questions marks where?

Did you solve this issue? I’m getting same problem for Turkish characters like ‘şüğç’ ==> �
I also added charset=UTF-8 but didn’t worked