<html>
<script src="./node_modules/docx-merger/dist/docx-merger.min.js"></script>
<script src="https://cdn.bootcdn.net/ajax/libs/FileSaver.js/2.0.5/FileSaver.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jszip-utils/0.0.2/jszip-utils.min.js"></script>
<script>
function loadFile(url, callback) {
JSZipUtils.getBinaryContent(url, callback);
}
loadFile("template.docx", function (error, file1) {
loadFile("template1.docx", function (error, file2) {
var docx = new DocxMerger({}, [file1, file2]);
docx.save('blob', function (data) {
saveAs(data, "output.docx");
});
})
})
</script>
</html>