为剪贴板添加面包屑

ui/pages/home_messages.page.js

@@ -36,6 +36,9 @@ const page = new NamedPage('home_messages', () => {
     reduxStore = store;
 
     const sock = new SockJs('/home/messages-conn');
+    sock.onopen = () => {
+      sock.send(document.cookie);
+    };
     sock.onmessage = (message) => {
       const msg = JSON.parse(message.data);
       store.dispatch({

ui/pages/judge_playground.page.js

@@ -6,8 +6,8 @@ const page = new NamedPage('judge_playground', async () => {
   const { default: SockJs } = await import('sockjs-client');
 
   const sock = new SockJs('/judge/consume-conn');
-
   sock.onopen = () => {
+    sock.send(document.cookie);
     const div = $('<div class="section visible">').appendTo('#messages');
     $('<div class="section__header"><h1 class="section__title">Connection opened.</h1></div>')
       .appendTo(div);

ui/pages/problem_detail.page.js

@@ -168,6 +168,9 @@ const page = new NamedPage(['problem_detail', 'contest_detail_problem', 'homewor
     } = await loadReactRedux(ScratchpadReducer);
 
     const sock = new SockJs(Context.socketUrl);
+    sock.onopen = () => {
+      sock.send(document.cookie);
+    };
     sock.onmessage = (message) => {
       const msg = JSON.parse(message.data);
       store.dispatch({