From c8860ff61dcdd371b154b61f21faab36031caf1f Mon Sep 17 00:00:00 2001
From: Raymond Hill <rhill@raymondhill.net>
Date: Sun, 30 Jun 2019 10:22:06 -0400
Subject: [PATCH] Code review of
 https://github.com/gorhill/uBlock/commit/c1bdc123f243565e5899dd2b8629480fb4477d8a

---
 src/js/scriptlets/element-picker.js | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/src/js/scriptlets/element-picker.js b/src/js/scriptlets/element-picker.js
index c8779c23e..64620f455 100644
--- a/src/js/scriptlets/element-picker.js
+++ b/src/js/scriptlets/element-picker.js
@@ -990,13 +990,17 @@ const filterToDOMInterface = (( ) => {
                     cssSelectors.add(item.raw);
                 }
             }
-            vAPI.domFilterer.addCSSRule(
-                Array.from(cssSelectors),
-                'display:none!important;'
-            );
-            vAPI.domFilterer.addProceduralSelectors(
-                Array.from(proceduralSelectors)
-            );
+            if ( cssSelectors.size !== 0 ) {
+                vAPI.domFilterer.addCSSRule(
+                    Array.from(cssSelectors),
+                    'display:none!important;'
+                );
+            }
+            if ( proceduralSelectors.size !== 0 ) {
+                vAPI.domFilterer.addProceduralSelectors(
+                    Array.from(proceduralSelectors)
+                );
+            }
         });
     };