diff --git a/app.py b/app.py
index 94e3045..6be13c0 100644
--- a/app.py
+++ b/app.py
@@ -205,6 +205,9 @@ def get_data(video_id, real_url):
 
 def get_oembed_url(params):
     """Get the oEmbed (/owoembed) URL based on the given params (server response)"""
+    if not params:
+        return None
+
     author_id = params.get('owner', {}).get('id')
     author_name = params.get('owner', {}).get('nickname')
     video_id = params.get('video', {}).get('id')
@@ -272,6 +275,8 @@ def proxy(video_id):
     og_video_width = None
     og_video_height = None
     for tag in og_tags:
+        if 'data-server' in tag.attrs:
+            del tag.attrs['data-server']
         # Fix thumbnail
         if tag.get("property") == "og:image" and thumbnail_url:
             tag["content"] = thumbnail_url
@@ -287,6 +292,7 @@ def proxy(video_id):
     og_tags_str = "\n".join(str(tag) for tag in og_tags)
     og_tags_str += '\n<meta content="0" property="twitter:image"/>'
     og_tags_str += '\n<meta content="player" property="twitter:card"/>'
+    og_tags_str += '\n<meta content="video/mp4" property="twitter:player:stream:content_type"/>'
     og_tags_str += f'\n<meta content="{cdn_video_url}" property="twitter:player:stream"/>'
     if og_video_width:
         og_tags_str += f'\n<meta content="{og_video_width}" property="twitter:player:width"/>'