how to add json data to xmlhttprequest

The solution for this is noted below

how to add json data to xmlhttprequest

Solution

var xmlhttp = new XMLHttpRequest();   // new HttpRequest instance 
var theUrl = "/json-handler";
xmlhttp.open("POST", theUrl);
xmlhttp.setRequestHeader("Content-Type", "application/json;charset=UTF-8");
xmlhttp.send(JSON.stringify({ "email": "hello@user.com", "response": { "name": "Tester" } }));

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