Merge branch 'master' into develop

# Conflicts:
#	readme.md

src/js/plugins/youtube.js

@@ -34,6 +34,19 @@ function assurePlaybackState(play) {
     }
 }
 
+function getHost(config) {
+    if (config.noCookie) {
+        return 'https://www.youtube-nocookie.com';
+    }
+
+    if (window.location.protocol === 'http:') {
+        return 'http://www.youtube.com';
+    }
+
+    // Use YouTube's default
+    return undefined;
+}
+
 const youtube = {
     setup() {
         // Add embed class for responsive
@@ -151,7 +164,7 @@ const youtube = {
         // https://developers.google.com/youtube/iframe_api_reference
         player.embed = new window.YT.Player(id, {
             videoId,
-            host: config.noCookie ? 'https://www.youtube-nocookie.com' : undefined,
+            host: getHost(config),
             playerVars: extend(
                 {},
                 {