fix term.js input error problem

handler is undefined.

templates/jlog/log_online.html

@@ -146,9 +146,10 @@
         var socket = new WebSocket(wsUri + '?file_path=' + file_path);
 
         var term = new Terminal({
-              cols: 80,
-              rows: 24,
-              screenKeys: false
+            cols: 80,
+            rows: 24,
+            screenKeys: false,
+            handler: function(){return false}
         });
 
         var tag = $('<div id="term" style="height:500px; overflow: auto;background-color: rgba(0, 0, 0, 0);border: none"></div>');