diff --git a/apps/terminal/api/session.py b/apps/terminal/api/session.py
index 4653e673d..d2365bef0 100644
--- a/apps/terminal/api/session.py
+++ b/apps/terminal/api/session.py
@@ -141,7 +141,7 @@ class SessionJoinValidateAPI(views.APIView):
         if not session:
             msg = _('Session does not exist: {}'.format(session_id))
             return Response({'ok': False, 'msg': msg}, status=401)
-        if not session.can_join():
+        if not session.can_join:
             msg = _('Session is finished or the protocol not supported')
             return Response({'ok': False, 'msg': msg}, status=401)
 
diff --git a/apps/terminal/models.py b/apps/terminal/models.py
index 3dd34de86..a2dcbf8e0 100644
--- a/apps/terminal/models.py
+++ b/apps/terminal/models.py
@@ -243,6 +243,7 @@ class Session(OrgModelMixin):
             return True
         return False
 
+    @property
     def can_join(self):
         if self.is_finished:
             return False
diff --git a/apps/terminal/templates/terminal/session_list.html b/apps/terminal/templates/terminal/session_list.html
index 6876ed448..c7e7dce6c 100644
--- a/apps/terminal/templates/terminal/session_list.html
+++ b/apps/terminal/templates/terminal/session_list.html
@@ -236,7 +236,7 @@ $(document).ready(function() {
 }).on('click', '.btn-replay', function () {
     var sessionID = $(this).data("session");
     var replayUrl = "/luna/replay/" + sessionID;
-    window.open(replayUrl, "height=600, width=800, top=400, left=400, toolbar=no, menubar=no, scrollbars=no, location=no, status=no");
+    window.open(replayUrl, "_blank", "height=600, width=800, top=400, left=400, toolbar=no, menubar=no, scrollbars=no, location=no, status=no");
 })
 .on('click', '.btn-download', function () {
     var sessionID = $(this).data("session");
@@ -254,7 +254,7 @@ $(document).ready(function() {
 .on('click', '.btn-join', function () {
     var sessionID = $(this).data("session");
     var joinUrl = "/luna/join/?shareroom=" + sessionID;
-    window.open(joinUrl, "height=600, width=800, top=400, left=400, toolbar=no, menubar=no, scrollbars=no, location=no, status=no");
+    window.open(joinUrl)
 })
 .on("click", '#session_table_filter input', function (e) {
     e.preventDefault();