Don't display label context menu items if there are no labels.

Caused by: 5e78b0c253d56d85b0339636c8793f93c835b792
See: https://discourse.tt-rss.org/t/label-options-sometimes-not-showing-in-context-menu/366

1 files changed, 1 insertions, 1 deletions

diff --git a/js/viewfeed.js b/js/viewfeed.js
index 3aaea99b9..e0ad2dd32 100755
--- a/js/viewfeed.js
+++ b/js/viewfeed.js
@@ -1740,7 +1740,7 @@ function headlinesMenuCommon(menu) {
 
 	var labels = getInitParam("labels");
 
-	if (labels) {
+	if (labels && labels.length) {
 
 		menu.addChild(new dijit.MenuSeparator());