extra check

src/freedombone-installer

@@ -111,6 +111,10 @@ function web_admin_onion_only {
 
     ONION_ONLY=$(grep 'ONION_ONLY=' "$CONFIGURATION_FILE" | head -n 1 | awk -F '=' '{print $2}')
 
+    if [ ! "$ONION_ONLY" ]; then
+        ONION_ONLY='no'
+    fi
+
     if [[ "$ONION_ONLY" == 'no' ]]; then
         return
     fi