When sending ajax request to my JSON Service method, the method inserts the data into backend and runs return true/false. Sometimes the success callback function is not being called after returning from JSON Service method without exception. I cannot able to reproduce this in my development and qa environments. But it is happening 1 or 2 users for every 1000 users in Production. If that users retry, it works with no issues.

Below is how I am sending ajax request

$.ajax(

{

type: "POST",

url: jsonSvcUrl + "/SaveItems",

dataType: "json",

data: JSON.stringify(data),

async: false,

contentType: "application/json; charset=utf-8",

success: SaveSuccess,

error: SaveFailed

});

I am using jQuery 1.4.2. Is this a solution for this issue.