5 files changed, 23 insertions, 10 deletions
diff --git a/src/invidious/channels/channels.cr b/src/invidious/channels/channels.cr
index c3d6124f..be739673 100644
--- a/src/invidious/channels/channels.cr
+++ b/src/invidious/channels/channels.cr
@@ -93,7 +93,7 @@ struct ChannelVideo
   def to_tuple
     {% begin %}
       {
-        {{*@type.instance_vars.map(&.name)}}
+        {{@type.instance_vars.map(&.name).splat}}
       }
     {% end %}
   end
diff --git a/src/invidious/config.cr b/src/invidious/config.cr
index 13e53222..09c2168b 100644
--- a/src/invidious/config.cr
+++ b/src/invidious/config.cr
@@ -48,7 +48,7 @@ struct ConfigPreferences
   def to_tuple
     {% begin %}
       {
-        {{*@type.instance_vars.map { |var| "#{var.name}: #{var.name}".id }}}
+        {{(@type.instance_vars.map { |var| "#{var.name}: #{var.name}".id }).splat}}
       }
     {% end %}
   end
diff --git a/src/invidious/helpers/errors.cr b/src/invidious/helpers/errors.cr
index 6e5a975d..21b789bc 100644
--- a/src/invidious/helpers/errors.cr
+++ b/src/invidious/helpers/errors.cr
@@ -3,7 +3,7 @@
 # -------------------
 
 macro error_template(*args)
-  error_template_helper(env, {{*args}})
+  error_template_helper(env, {{args.splat}})
 end
 
 def github_details(summary : String, content : String)
@@ -95,7 +95,7 @@ end
 # -------------------
 
 macro error_atom(*args)
-  error_atom_helper(env, {{*args}})
+  error_atom_helper(env, {{args.splat}})
 end
 
 def error_atom_helper(env : HTTP::Server::Context, status_code : Int32, exception : Exception)
@@ -121,7 +121,7 @@ end
 # -------------------
 
 macro error_json(*args)
-  error_json_helper(env, {{*args}})
+  error_json_helper(env, {{args.splat}})
 end
 
 def error_json_helper(
diff --git a/src/invidious/videos.cr b/src/invidious/videos.cr
index 9fbd1374..a8f02056 100644
--- a/src/invidious/videos.cr
+++ b/src/invidious/videos.cr
@@ -227,8 +227,22 @@ struct Video
     info.dig?("streamingData", "hlsManifestUrl").try &.as_s
   end
 
-  def dash_manifest_url
-    info.dig?("streamingData", "dashManifestUrl").try &.as_s
+  def dash_manifest_url : String?
+    raw_dash_url = info.dig?("streamingData", "dashManifestUrl").try &.as_s
+    return nil if raw_dash_url.nil?
+
+    # Use manifest v5 parameter to reduce file size
+    # See https://github.com/iv-org/invidious/issues/4186
+    dash_url = URI.parse(raw_dash_url)
+    dash_query = dash_url.query || ""
+
+    if dash_query.empty?
+      dash_url.path = "#{dash_url.path}/mpd_version/5"
+    else
+      dash_url.query = "#{dash_query}&mpd_version=5"
+    end
+
+    return dash_url.to_s
   end
 
   def genre_url : String?
diff --git a/src/invidious/yt_backend/connection_pool.cr b/src/invidious/yt_backend/connection_pool.cr
index 03ff0ee4..36e82766 100644
--- a/src/invidious/yt_backend/connection_pool.cr
+++ b/src/invidious/yt_backend/connection_pool.cr
@@ -1,7 +1,6 @@
 def add_yt_headers(request)
-  if request.headers["User-Agent"] == "Crystal"
-    request.headers["User-Agent"] ||= "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36"
-  end
+  request.headers.delete("User-Agent") if request.headers["User-Agent"] == "Crystal"
+  request.headers["User-Agent"] ||= "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36"
 
   request.headers["Accept-Charset"] ||= "ISO-8859-1,utf-8;q=0.7,*;q=0.7"
   request.headers["Accept"] ||= "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"