Fetch

fancierFetch.js

const url = this.getAttribute('data-url')
fetch(url)
    .then(function(response) {
        return response.text()
    })
    .then(function(html) {
        var parser = new DOMParser();
        var doc = parser.parseFromString(html, "text/html");
        console.log('HEREEEE', doc);
        // this.innerHTML = doc.documentElement.innerHTML
    })
    .catch(function(err) {  
        console.log('Failed to fetch page: ', err);  
    });

Fetch.js

((url) => {
fetch(url)
    .then(function(response) {
        return response.text()
    })
    .then(function(html) {
        var parser = new DOMParser();
        var doc = parser.parseFromString(html, "text/html");
        console.log('HEREEEE', doc);
        // this.innerHTML = doc.documentElement.innerHTML
    })
    .catch(function(err) {  
        console.log('Failed to fetch page: ', err);  
    });
})('somepage.html')