I want to scrawl data from linked In page that comes after login. All I need to do is with pure JavaScript. Below is the code that I'm using to scrawl data.

window.onload = function(){ var request = new XMLHttpRequest();

request.onreadystatechange = function() {
    if (this.readyState == 4 && this.status == 200) {
        console.log(this.responseText);
    }
};

request.open('GET', 'https://www.linkedin.com/sales/home');
request.send();

And I'm getting below error in form of screenshot: Error Screenshot

I also tried to add header request but it didn't work.

Note:  request.open is working against some website's but not all.

Any help will be appreciated. Thanks.