有没有办法使用window.location创建POST HTTP请求？

var xhr = new XMLHttpRequest();
xhr.open("POST", "https://example.com/api/resource", true);
xhr.setRequestHeader("Content-Type", "application/json;charset=UTF-8");

xhr.onreadystatechange = function () {
    if (xhr.readyState === 4 && xhr.status === 200) {
        var json = JSON.parse(xhr.responseText);
        console.log(json);
    }
};

var data = JSON.stringify({"key": "value"});
xhr.send(data);

fetch('https://example.com/api/resource', {
    method: 'POST',
    headers: {
        'Content-Type': 'application/json'
    },
    body: JSON.stringify({
        key: 'value'
    })
})
.then(response => response.json())
.then(data => console.log(data))
.catch((error) => console.error('Error:', error));