hello, 

I am consuming web API in post method in my project, but it gives following course error.

My API is in different project and I am consuming in different project in postman API works well, but in jquery Ajax call gives error

Access to XMLHttpRequest at 'http://localhost:62694/api/app/Post' from origin 'http://localhost:59345' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.

jquery ajax

<script type="text/javascript"> 
    //Add event handler.
    $("body").on("click", "#btnAdd", function () {
        //var txtName = "0FF592C4-0E7C-4D78-8847-452838791C49";
        //var txtCountry = "country";
        var _customer = {};
        _customer.Name =  "0FF592C4-0E7C-4D78-8847-452838791C49";
        _customer.Country = "country";
        $.ajax({
            
            type: "POST",
            url: "http://localhost:62694/api/app/Post",
            data: JSON.stringify(_customer),
            contentType: "application/json; charset=utf-8",               
            dataType: "json",
            success: function (r) {
                alert("success");
            }
        });
    });
</script>
<input type="button" id="btnAdd" value="Add"/>