ui: fix vote button

packages/ui-default/components/discussion/comments.page.styl

@@ -83,7 +83,7 @@ $downvote-color = red
     transition: border-color .2s linear, opacity .2s linear
     opacity: 0.5
 
-    &>form
+    &>button
       width: rem(40px)
       float: left
       position: relative

packages/ui-default/components/vote/vote.page.js

@@ -1,4 +1,5 @@
 import $ from 'jquery';
+import Notification from 'vj/components/notification';
 import Rotator from 'vj/components/rotator';
 import { AutoloadPage } from 'vj/misc/Page';
 import { request } from 'vj/utils';
@@ -25,12 +26,15 @@ const votePage = new AutoloadPage('votePage', () => {
     const $container = $button.closest('.vote');
     const $form = $button.closest('form');
     request
-      .post($form.attr('action'), $form)
+      .post($form.attr('action'), {
+        operation: $button.attr('value'),
+        psid: $form.find('input[name="psid"]').val(),
+      })
       .then((data) => {
         setVoteState($container, data.vote, data.user_vote);
       })
-      .catch(() => {
-        // TODO(iceboy): notify failure
+      .catch((e) => {
+        Notification.error(`Failed to vote: ${ e.message}`);
       });
     return false;
   });