diff --git a/CHANGELOG.md b/CHANGELOG.md
index d25ccfd..8886fd8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+# 8.x-1.0-alpha3
+* Updated embed source url to resolve cors-errors.
+
 # 8.x-1.0-alpha2
 * Added support for www2-subdomain.
 * Added support for thumbnails
diff --git a/src/Plugin/video_embed_field/Provider/UniTube.php b/src/Plugin/video_embed_field/Provider/UniTube.php
index 473554c..9152910 100644
--- a/src/Plugin/video_embed_field/Provider/UniTube.php
+++ b/src/Plugin/video_embed_field/Provider/UniTube.php
@@ -26,7 +26,7 @@ public function renderEmbedCode($width, $height, $autoplay) {
       '#suffix' => '</div>',
       '#type' => 'video_embed_iframe',
       '#provider' => 'unitube',
-      '#url' => sprintf('https://webcast.helsinki.fi/unitube/embed.html?id=%s&play=false', $this->getVideoId()),
+      '#url' => sprintf('https://unitube.it.helsinki.fi/unitube/embed.html?id=%s&play=false', $this->getVideoId()),
       '#attributes' => [
         'width' => $width,
         'height' => $height,
@@ -34,7 +34,7 @@ public function renderEmbedCode($width, $height, $autoplay) {
         'marginheight' => '0px',
         'marginwidth' => '0px',
         'frameborder' => '0',
-        'allowfullscreen' => 'allowfullscreen',
+        'allowfullscreen' => 'true',
       ],
     ];
   }