Update src/chat.js

src/chat.js

@@ -1,4 +1,4 @@
-var socket = io.connect('http://' + document.domain + ':' + location.port); // change by https:// if your use https proxy like replit
+var socket = io.connect('https://' + document.domain + ':' + location.port); // change by https:// if your use https proxy like replit
 var uid = "{{ username }}";//document.cookie;//Math.floor(Math.random() * 1000000000);
 var iid = 0;
 var roomID = $('#user-id-input').val();