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Co-authored-by: Cody Robibero <cody@robibe.ro>

Jellyfin.Api/Controllers/SubtitleController.cs

@@ -427,9 +427,7 @@ namespace Jellyfin.Api.Controllers
                 if (fontFile != null && fileSize != null && fileSize > 0)
                 {
                     _logger.LogDebug("Fallback font size is {FileSize} Bytes", fileSize);
-
-                    FileStream stream = new FileStream(fontFile.FullName, FileMode.Open, FileAccess.Read);
-                    return File(stream, MimeTypes.GetMimeType(fontFile.FullName));
+                    return PhysicalFile(fontFile.FullName, MimeTypes.GetMimeType(fontFile.FullName));
                 }
                 else
                 {