Add option to control preloading of video data

Fix #4110 by adding an option to control the preloading of video data on
page load. If disabled ("false"), the browser will not preload any video
data until the user explicitly hits the "Play" button.

If enabled ("true"), the default behavior will be used, which means the
browser decides how much of the video will be preloaded.

1 files changed, 4 insertions, 1 deletions

diff --git a/assets/js/player.js b/assets/js/player.js
index bb53ac24..398c66f8 100644
--- a/assets/js/player.js
+++ b/assets/js/player.js
@@ -3,7 +3,6 @@ var player_data = JSON.parse(document.getElementById('player_data').textContent)
 var video_data = JSON.parse(document.getElementById('video_data').textContent);
 
 var options = {
-    preload: 'auto',
     liveui: true,
     playbackRates: [0.25, 0.5, 0.75, 1.0, 1.25, 1.5, 1.75, 2.0],
     controlBar: {
@@ -35,6 +34,10 @@ if (player_data.aspect_ratio) {
     options.aspectRatio = player_data.aspect_ratio;
 }
 
+if (player_data.preload) {
+    options.preload = player_data.preload
+}
+
 var embed_url = new URL(location);
 embed_url.searchParams.delete('v');
 var short_url = location.origin + '/' + video_data.id + embed_url.search;