hestiacp/web/js/pages/list_ssl.js

function saveTextToBlob(file, element) {
	var text = document.getElementById(element).value;
	var textFileAsBlob = new Blob([text], { type: 'text/plain' });
	var downloadLink = document.createElement('a');
	downloadLink.download = file;
	downloadLink.innerHTML = 'Download File';
	if (window.webkitURL != null) {
		// Chrome allows the link to be clicked
		// without actually adding it to the DOM.
		downloadLink.href = window.webkitURL.createObjectURL(textFileAsBlob);
	} else {
		// Firefox requires the link to be added to the DOM
		// before it can be clicked.
		downloadLink.href = window.URL.createObjectURL(textFileAsBlob);
		downloadLink.onclick = destroyClickedElement;
		downloadLink.style.display = 'none';
		document.body.appendChild(downloadLink);
	}

	downloadLink.click();
}

function destroyClickedElement(event) {
	document.body.removeChild(event.target);
}