diff --git a/docs/mobile.html b/docs/mobile.html
index 0f81a28a9..0e9b98be1 100644
--- a/docs/mobile.html
+++ b/docs/mobile.html
@@ -66,6 +66,7 @@
                 'x5-video-player-type': 'h5',
                 'x5-video-player-fullscreen': false,
                 'x5-video-orientation': 'portraint',
+                preload: "metadata"
             },
             subtitle: {
                 url: '/assets/sample/subtitle.srt',