How to Render the Blazor Server Application in IE11 Web Browser

17 Apr 20241 minute to read

This section explains how to render the Blazor Server application in IE11 web browser.

Blazor Client/WebAssembly App

The Microsoft Internet Explorer doesn’t support with WebAssembly. So, Blazor Client/WebAssembly application does not support with Internet Explorer web browser.

Blazor Server App

The Microsoft Internet Explorer supports Blazor Server app with additional polyfills in .NET Core 3.1 apps. However, it is not support with .NET 5.0 or later versions. Refer to Blazor updated browser support for more information.

Find the following steps to add the polyfills in the Blazor server application.

  1. Create a Blazor server application using Blazor Server Getting Started documentation.

  2. Add the polyfill script reference in the <head> element of the ~/Pages/_Host.cshtml page.

         <script src=""></script>


    This polyfill is required to configure in Blazor server application for IE 11 support for .NET Core 3.1 app.

  3. Run the application in the IE 11 web browser and the Syncfusion Blazor Component is now rendered on IE 11.

    Syncfusion component rendering on IE11

See Also