<script> document.getElementById("upload_widget_opener").addEventListener("click", function () { cloudinary.openUploadWidget({ cloud_name: 'your_cloud_name', upload_preset: 'your_upload_preset', max_image_width: 300, max_image_height: 300, crop: 'limit' }, function (error, result) { console.log(error, result) // Push URL into text input document.getElementById('url_text').value = result[0].url; res.redirect("/files"); }); }, false); </script>