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Microsoft.JSInterop.JSException: 'this.element.querySelector is not a function

I'm trying to get to the bottom of errors that my application is logging and that I'm seeing on debug in the console. One of them is:

Microsoft.JSInterop.JSException: 'this.element.querySelector is not a function

TypeError: this.element.querySelector is not a function

    at t.render (https://localhost:7167/_content/Syncfusion.Blazor.Core/scripts/syncfusion-blazor.min.js?v=28361:19:197603)

    at t.initialize (https://localhost:7167/_content/Syncfusion.Blazor.Core/scripts/syncfusion-blazor.min.js?v=28361:19:196577)

    at new t (https://localhost:7167/_content/Syncfusion.Blazor.Core/scripts/syncfusion-blazor.min.js?v=28361:19:196412)

    at Object.initialize (https://localhost:7167/_content/Syncfusion.Blazor.Core/scripts/syncfusion-blazor.min.js?v=28361:19:216845)

    at https://localhost:7167/_framework/blazor.web.js?version=28361:1:3244

    at new Promise ()

    at y.beginInvokeJSFromDotNet (https://localhost:7167/_framework/blazor.web.js?version=28361:1:3201)

    at fn._invokeClientMethod (https://localhost:7167/_framework/blazor.web.js?version=28361:1:62869)

    at fn._processIncomingData (https://localhost:7167/_framework/blazor.web.js?version=28361:1:60344)

    at connection.onreceive (https://localhost:7167/_framework/blazor.web.js?version=28361:1:53985)'


This seems to be coming from the dialog syncfusion blazor dll according to the stack trace:


Empty



If you try using the sfDialog control in a Blazor web app on Server mode and enable breaking on this exception type, you'll get this detail:


Empty