diff --git a/resources/media-controls.js b/resources/media-controls.js
index 20a0ac6332d3..a68d6954aa12 100644
--- a/resources/media-controls.js
+++ b/resources/media-controls.js
@@ -227,7 +227,7 @@
 
       // Progress.
       const positionPercent = this.media.currentTime / this.media.duration * 100;
-      if (!isNaN(positionPercent) && positionPercent != Infinity) {
+      if (Number.isFinite(positionPercent)) {
         this.elements.progress.value = positionPercent;
       } else {
         this.elements.progress.value = 0;