fetch-stream

fetch('http://localhost/my-script.js').then(response => {
    var reader = response.body.getReader();
    var result = new Uint8Array();
    
    reader.read().then(function processText({ done, value }) {
        if (done) {
            let decoder = new TextDecoder('utf-8');
            return decoder.decode(result);
        }
        
        let temp = new Uint8Array(result.length + value.length);
        temp.set(result);
        temp.set(value, result.length);
        result = temp;
    
        return reader.read().then(processText);
    }).then(console.log);
});