Only server-side Blazor is supported by Microsoft’s Internet Explorer IE 11 when additional polyfills are used. Client-side Blazor is not supported by Internet Explorer due to incompatibility of WebAssembly. You need to add the following polyfills in the _Host.cshtml/_Layout.cshtml page to support Internet Explorer.
[_Host.cshtml/_Layout.cshtml]
//polyfills to be added for Internet Explorer
<script src="https://cdnjs.cloudflare.com/ajax/libs/core-js/2.6.5/core.min.js"></script>
<script src="https://polyfill.io/v3/polyfill.min.js?features=fetch"></script> 
Share with