AJAX：405方法不允许

Question

I have used below ajax code and it is working fine when I execute this in POSTMAN.

$.ajax({
    type: "POST",
    url: "https://dev-apps-nodejs.com:9003/employee/employeeid",        
    async: false,
    contentType: "application/json",
    data: { "email" : emailId },
    dataType: "JSON",
    success: function(data){
        var emp_code=data.employeeidcode;
        callbackFn(emp_code);
    },
    error: function(e){
        document.getElementById("report_form").style.display="block";
    }
});

But in application it returns 405 error like below:

jquery-1.8.0.min.js:2 POST https://dev-apps-nodejs.com:9003/employee/employeeid 405 (Method Not Allowed)