Chrome Clipboard Functionality

/*
 * Source:
 * https://stackoverflow.com/questions/13899299/write-text-to-clipboard#18258178
 */
function copyStringToClipboard(str) {
    // Create new element
    var el = document.createElement('textarea');
    // Set value (string to be copied)
    el.value = str;
    // Set non-editable to avoid focus and move outside of view
    el.setAttribute('readonly', '');
    el.style = {position: 'absolute', left: '-9999px'};
    document.body.appendChild(el);
    // Select text inside element
    el.select();
    // Copy text to clipboard
    document.execCommand('copy');
    // Remove temporary element
    document.body.removeChild(el);
}