

Use caution when providing users with the ability to download files from a server. For more information, see the Cross-Origin Resource Sharing (CORS) section. When downloading files from a different origin than the app, Cross-Origin Resource Sharing (CORS) considerations apply. Stream file content to a raw binary data buffer on the client: Typically, this approach is used for relatively small files ( 250 MB).This artcle covers approaches for the following scenarios: NET, such as Content Delivery Networks (CDNs). The guidance in this article also applies to other types of file servers that don't use.

ASP.NET Core apps use Static File Middleware to serve files to clients of Blazor Server and hosted Blazor WebAssembly apps.Files can be downloaded from the app's own static assets or from any other location:
