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jQuery does not load txt/html file

I need to make a simple website,that contains header(needs to be in a different file) and main part.All of that should be running on server.

App.js

const fs = require("fs")
const http = require("http")
let server = http.createServer((req, res) => {
    res.writeHead(200, {"Content-Type": "text/html; charset=utf-8"})
    
    if(req.url == "/"){
        fs.readFile("ultimate.html", "utf-8", function(error, data){
            console.log("Loaded") //confirms the loading of a page
            res.end(data)
        })
    }
})

const PORT = 3000
const HOST = "localhost"

server.listen(PORT, HOST, () => { 
    console.log(`Server is up: http://${HOST}:${PORT}`)
})

ultimate.html

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<html>
    
</head>
    <script src="https://code.jquery.com/jquery-3.4.1.min.js"></script>
    <script type="text/javascript">
        jQuery(document).ready(function(req,res){
                    console.log(status)
                    $("#header").html('Did i disappear?'); //This message is present on the screen
                    $("#header").load("Text.txt"); //This thing doesnt load at all
        });
    </script> 
    
</head>

    <body>
        <div id="header"></div> 
    </body>
    
</html>

I tried loading a small txt file and a html file as a header, but nothing works. The only thing that works is .html but that’s about it.Also console log (status) has a blank value.
Im using NODEJS if thats helps

>Solution :

Is the code you have given complete ? As you can read in the .load documentation, $.load('Text.txt') will act in the same as $.get(Text.txt). It will execute a request to the /Text.txt path.

On the server side, nothing seems ready to handle this. You should add a route to Text.txt that loads the file and return its content.

You can see this for yourself by opening your browser devtools and going to « network » tab. You should see a request to Text.txt, resulting with a 404 status.

Your console.log has a blank value because the status variable is undefined.

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