html post method always failing - html

Question

I made an html based on a course I was studying and was trying out post method using ajax. I made a web server using node js and hosted it on a port so that I can send a JSON file and receive it from there but it is always failing. This is my code on my html for the post method.
$.post('http://localhost:8000', message).done(function(received) {
$('#output').text('You chose ' + received.value + ' out of ' + received.maxValue)
}).fail(function () {
$('#output').text('Failed')
})
It is always failing, hope to get some ideas because I was studying html and just needed to make a quick server to test using post requests on.
It worked when I hosted the html on the node.js server on the same port. I am tying to see how to make it work while not being on the same port or server.
Here's my server side code:
var http = require('http'),
fs = require('fs'),
path = require('path')
var PORT = 8000
fs.readFile(path.resolve(__dirname, "index.html"), function(err, html) {
if (err) {
throw err;
}
http.createServer(function(request, response) {
if (request.url == '/home') {
response.writeHeader(200, {
"Content-Type": "text/html"
});
response.write(html);
response.end();
}
if (request.method == 'POST') {
console.log('POST2')
var body = ''
request.on('data', function(data) {
body += data
});
request.on('end', function() {
try {
var post = JSON.parse(body);
console.log(post);
response.writeHead(200, {
'Content-Type': 'application/json'
});
response.write(JSON.stringify(post))
response.end();
return;
} catch (err) {
var post = JSON.parse(body);
// deal_with_post_data(request,post);
response.writeHead(200, {
'Content-Type': 'application/json'
});
response.write(body);
response.end();
return;
}
});
}
}).listen(PORT);
});
console.log('Node.js web server at port ' + PORT + ' is running..')