*Also, besides simple example below, just navigate to the Syncfusion demo of Dialog using Microsoft Edge browser (url at https://blazor.syncfusion.com/demos/dialog/default-functionalities?theme=bootstrap4)... it's broken in exactly the same way.
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I'm using Syncfusion Blazor components version 18.3.0.41 which appears to be latest from Visual Studio NuGet.
I'm trying the simple Dialog example from the Syncfusion documentation. (I put this in Blazor index.razor page.)
It works fine in Google Chrome but in Microsoft Edge breaks page by throwing client-side Syntax error exception in syncfusion-blazor.min.js.
Other components I tried (e.g. Card) seem to work fine so far.