form submission changed to ajax

assets/public/note.js

@@ -0,0 +1,20 @@
+"use strict";
+
+function post(url, vals, cb) {
+    var data = new FormData();
+    for (var key in vals) {
+        data.append(key, vals[key]);
+    }
+    var xhr = new XMLHttpRequest();
+    xhr.open('POST', url)
+    xhr.onreadystatechange = function() { if (xhr.readyState === XMLHttpRequest.DONE) return cb(xhr.status, xhr.responseText) };
+    xhr.send(data);
+}
+
+function report(id) {
+    var resp = prompt("Please shortly explain the problem with this note.");
+    if (resp) {
+        post('/' + id + '/report', { "report": resp })
+        alert("Thank you!")
+    }
+} 

assets/public/style.css

@@ -272,3 +272,8 @@ form {
 li {
     margin: 0.3em 0;
 }
+
+#feedback {
+    margin-left: 1em;
+    color: #f66;
+}