MediaEmbed: fix YouTube

Fixes 85d45dc

Author: JoshyPHP

docs/Bundles/MediaPack.md

@@ -12,5 +12,5 @@ $html = TextFormatter::render($xml);
 echo $html;
 ```
 ```html
-<span data-s9e-mediaembed="youtube" style="display:inline-block;width:100%;max-width:640px"><span style="display:block;overflow:hidden;position:relative;padding-bottom:56.25%"><iframe allowfullscreen="" loading="lazy" scrolling="no" style="background:url(https://i.ytimg.com/vi/QH2-TGUlwu4/hqdefault.jpg) 50% 50% / cover;border:0;height:100%;left:0;position:absolute;width:100%" src="https://www.youtube.com/embed/QH2-TGUlwu4"></iframe></span></span>
+<span data-s9e-mediaembed="youtube" style="display:inline-block;width:100%;max-width:640px"><span style="display:block;overflow:hidden;position:relative;padding-bottom:56.25%"><iframe allowfullscreen="" loading="lazy" referrerpolicy="origin" scrolling="no" style="background:url(https://i.ytimg.com/vi/QH2-TGUlwu4/hqdefault.jpg) 50% 50% / cover;border:0;height:100%;left:0;position:absolute;width:100%" src="https://www.youtube.com/embed/QH2-TGUlwu4"></iframe></span></span>
 ```

docs/Getting_started/Using_predefined_bundles.md

@@ -34,7 +34,7 @@ To-do list:
   <li> Say hello to the world <img alt=":)" class="emoji" draggable="false" src="https://cdn.jsdelivr.net/gh/twitter/twemoji@latest/assets/svg/1f642.svg"></li>
   <li> Go to <a href="http://example.com">http://example.com</a></li>
   <li> Try to trip the parser with <b>mis<i>nes</i></b><i>ted<u> tags</u></i></li>
-  <li> Watch this video: <span data-s9e-mediaembed="youtube" style="display:inline-block;width:100%;max-width:640px"><span style="display:block;overflow:hidden;position:relative;padding-bottom:56.25%"><iframe allowfullscreen="" loading="lazy" scrolling="no" style="background:url(https://i.ytimg.com/vi/QH2-TGUlwu4/hqdefault.jpg) 50% 50% / cover;border:0;height:100%;left:0;position:absolute;width:100%" src="https://www.youtube.com/embed/QH2-TGUlwu4"></iframe></span></span></li>
+  <li> Watch this video: <span data-s9e-mediaembed="youtube" style="display:inline-block;width:100%;max-width:640px"><span style="display:block;overflow:hidden;position:relative;padding-bottom:56.25%"><iframe allowfullscreen="" loading="lazy" referrerpolicy="origin" scrolling="no" style="background:url(https://i.ytimg.com/vi/QH2-TGUlwu4/hqdefault.jpg) 50% 50% / cover;border:0;height:100%;left:0;position:absolute;width:100%" src="https://www.youtube.com/embed/QH2-TGUlwu4"></iframe></span></span></li>
 </ul>
 ```
 
@@ -69,5 +69,5 @@ assert(TextFormatter::unparse($xml) === $text);
   <ul><li>Say hello to the world :)</li>
   <li>Go to <a href="http://example.com">http://example.com</a></li>
   <li>Try to trip the parser with <strong>mis<em>nes</em></strong><em>ted<u> tags</u></em></li>
-  <li>Watch this video: <span data-s9e-mediaembed="youtube" style="display:inline-block;width:100%;max-width:640px"><span style="display:block;overflow:hidden;position:relative;padding-bottom:56.25%"><iframe allowfullscreen="" loading="lazy" scrolling="no" style="background:url(https://i.ytimg.com/vi/QH2-TGUlwu4/hqdefault.jpg) 50% 50% / cover;border:0;height:100%;left:0;position:absolute;width:100%" src="https://www.youtube.com/embed/QH2-TGUlwu4"></iframe></span></span></li></ul>
+  <li>Watch this video: <span data-s9e-mediaembed="youtube" style="display:inline-block;width:100%;max-width:640px"><span style="display:block;overflow:hidden;position:relative;padding-bottom:56.25%"><iframe allowfullscreen="" loading="lazy" referrerpolicy="origin" scrolling="no" style="background:url(https://i.ytimg.com/vi/QH2-TGUlwu4/hqdefault.jpg) 50% 50% / cover;border:0;height:100%;left:0;position:absolute;width:100%" src="https://www.youtube.com/embed/QH2-TGUlwu4"></iframe></span></span></li></ul>
 ```

docs/Plugins/MediaEmbed/Change_template.md

@@ -21,5 +21,5 @@ $html = $renderer->render($xml);
 echo $html;
 ```
 ```html
-<div class="embed-youtube"><span data-s9e-mediaembed="youtube" style="display:inline-block;width:100%;max-width:640px"><span style="display:block;overflow:hidden;position:relative;padding-bottom:56.25%"><iframe allowfullscreen="" loading="lazy" scrolling="no" style="background:url(https://i.ytimg.com/vi/-cEzsCAzTak/hqdefault.jpg) 50% 50% / cover;border:0;height:100%;left:0;position:absolute;width:100%" src="https://www.youtube.com/embed/-cEzsCAzTak"></iframe></span></span></div>
+<div class="embed-youtube"><span data-s9e-mediaembed="youtube" style="display:inline-block;width:100%;max-width:640px"><span style="display:block;overflow:hidden;position:relative;padding-bottom:56.25%"><iframe allowfullscreen="" loading="lazy" referrerpolicy="origin" scrolling="no" style="background:url(https://i.ytimg.com/vi/-cEzsCAzTak/hqdefault.jpg) 50% 50% / cover;border:0;height:100%;left:0;position:absolute;width:100%" src="https://www.youtube.com/embed/-cEzsCAzTak"></iframe></span></span></div>
 ```

docs/Plugins/MediaEmbed/Other_markup.md

@@ -20,7 +20,7 @@ $html = $renderer->render($xml);
 echo $html;
 ```
 ```html
-<span data-s9e-mediaembed="youtube" style="display:inline-block;width:100%;max-width:640px"><span style="display:block;overflow:hidden;position:relative;padding-bottom:56.25%"><iframe allowfullscreen="" loading="lazy" scrolling="no" style="background:url(https://i.ytimg.com/vi/-cEzsCAzTak/hqdefault.jpg) 50% 50% / cover;border:0;height:100%;left:0;position:absolute;width:100%" src="https://www.youtube.com/embed/-cEzsCAzTak"></iframe></span></span>
+<span data-s9e-mediaembed="youtube" style="display:inline-block;width:100%;max-width:640px"><span style="display:block;overflow:hidden;position:relative;padding-bottom:56.25%"><iframe allowfullscreen="" loading="lazy" referrerpolicy="origin" scrolling="no" style="background:url(https://i.ytimg.com/vi/-cEzsCAzTak/hqdefault.jpg) 50% 50% / cover;border:0;height:100%;left:0;position:absolute;width:100%" src="https://www.youtube.com/embed/-cEzsCAzTak"></iframe></span></span>
 ```
 
 ### Generic BBCode
@@ -49,7 +49,7 @@ $html = $renderer->render($xml);
 echo $html;
 ```
 ```html
-<span data-s9e-mediaembed="youtube" style="display:inline-block;width:100%;max-width:640px"><span style="display:block;overflow:hidden;position:relative;padding-bottom:56.25%"><iframe allowfullscreen="" loading="lazy" scrolling="no" style="background:url(https://i.ytimg.com/vi/-cEzsCAzTak/hqdefault.jpg) 50% 50% / cover;border:0;height:100%;left:0;position:absolute;width:100%" src="https://www.youtube.com/embed/-cEzsCAzTak"></iframe></span></span>
+<span data-s9e-mediaembed="youtube" style="display:inline-block;width:100%;max-width:640px"><span style="display:block;overflow:hidden;position:relative;padding-bottom:56.25%"><iframe allowfullscreen="" loading="lazy" referrerpolicy="origin" scrolling="no" style="background:url(https://i.ytimg.com/vi/-cEzsCAzTak/hqdefault.jpg) 50% 50% / cover;border:0;height:100%;left:0;position:absolute;width:100%" src="https://www.youtube.com/embed/-cEzsCAzTak"></iframe></span></span>
 ```
 
 ### XenForo-style BBCode
@@ -98,5 +98,5 @@ $html = $renderer->render($xml);
 echo $html;
 ```
 ```html
-<span data-s9e-mediaembed="youtube" style="display:inline-block;width:100%;max-width:640px"><span style="display:block;overflow:hidden;position:relative;padding-bottom:56.25%"><iframe allowfullscreen="" loading="lazy" scrolling="no" style="background:url(https://i.ytimg.com/vi/-cEzsCAzTak/hqdefault.jpg) 50% 50% / cover;border:0;height:100%;left:0;position:absolute;width:100%" src="https://www.youtube.com/embed/-cEzsCAzTak"></iframe></span></span>
+<span data-s9e-mediaembed="youtube" style="display:inline-block;width:100%;max-width:640px"><span style="display:block;overflow:hidden;position:relative;padding-bottom:56.25%"><iframe allowfullscreen="" loading="lazy" referrerpolicy="origin" scrolling="no" style="background:url(https://i.ytimg.com/vi/-cEzsCAzTak/hqdefault.jpg) 50% 50% / cover;border:0;height:100%;left:0;position:absolute;width:100%" src="https://www.youtube.com/embed/-cEzsCAzTak"></iframe></span></span>
 ```

docs/Plugins/MediaEmbed/Synopsis.md

@@ -42,7 +42,7 @@ foreach ($examples as $text)
 }
 ```
 ```html
-<span data-s9e-mediaembed="youtube" style="display:inline-block;width:100%;max-width:640px"><span style="display:block;overflow:hidden;position:relative;padding-bottom:56.25%"><iframe allowfullscreen="" loading="lazy" scrolling="no" style="background:url(https://i.ytimg.com/vi/-cEzsCAzTak/hqdefault.jpg) 50% 50% / cover;border:0;height:100%;left:0;position:absolute;width:100%" src="https://www.youtube.com/embed/-cEzsCAzTak"></iframe></span></span>
+<span data-s9e-mediaembed="youtube" style="display:inline-block;width:100%;max-width:640px"><span style="display:block;overflow:hidden;position:relative;padding-bottom:56.25%"><iframe allowfullscreen="" loading="lazy" referrerpolicy="origin" scrolling="no" style="background:url(https://i.ytimg.com/vi/-cEzsCAzTak/hqdefault.jpg) 50% 50% / cover;border:0;height:100%;left:0;position:absolute;width:100%" src="https://www.youtube.com/embed/-cEzsCAzTak"></iframe></span></span>
 <iframe data-s9e-mediaembed="facebook" allowfullscreen="" loading="lazy" onload="let c=new MessageChannel;c.port1.onmessage=e=&gt;this.style.height=e.data+'px';this.contentWindow.postMessage('s9e:init','*',[c.port2])" scrolling="no" style="border:0;height:360px;max-width:640px;width:100%" src="https://s9e.github.io/iframe/2/facebook.min.html#v10100658170103643"></iframe>
 ```