How to change header with jquery ajax

Jquery ajax method to change the header: 1. Set the header through the "$.ajax({undefined headers: {...}})" method; 2. Set the header using the beforeSend method.

The operating environment of this article: windows7 system, jquery3.2.1 version, DELL G3 computer

How to change the header of jquery ajax?

Two ways to set headers in jquery ajax

1. Setting parameter headers

$.ajax({undefined
    headers: {
        Accept: "application/json; charset=utf-8"
    },
    type: "get",
    success: function (data) {
    }
});

2. beforeSend method

$("#test").click(function() {
                $.ajax({
                    type: "GET",
                    url: "default.aspx",
                    beforeSend: function(request) {
                        request.setRequestHeader("Test", "Chenxizhang");
                    },
                    success: function(result) {
                        alert(result);
                    }
                });
            });

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