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.NET5 RC1 Blazor JS interop issue with HTML element return type. #26496

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.NET5 RC1 Blazor JS interop issue with HTML element return type.#26496
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✔️ Resolution: AnsweredResolved because the question asked by the original author has been answered.Status: Resolvedarea-blazorIncludes: Blazor, Razor Components
@majorimi

Description

@majorimi
majorimi
opened on Oct 1, 2020

I have an issue with JS interop. In the following scenario JS should return an HTML element which is stored as ElementReference in Blazor. Later at some point in the code I would like to use the stored reference.
I know about the @ref="" usage but the problem is I have different components so cannot access the active element of the document.

Here is the JS

export function focusElement(element) { //This receives ElementReference from Blazor and works..
    if (element && typeof element.focus === "function") {
        element.focus();
    }
}

export function getFocusedElement() {
    return document.activeElement; //This should return HTML element as ElementReference to Blazor but fails...
}

Blazor code which tries to store the JSObjectReference

@inject IJSRuntime _jsRuntime;
...

JSObjectReference _focusJs = await _jsRuntime.InvokeAsync<JSObjectReference>("import", "./_content/<PACKAGE>/focus.js");
ElementReference _previousFocusedElement = await _focusJs.InvokeAsync<ElementReference>("getFocusedElement");

And it fails various errors based on the active HTML element type

In case of a element

blazor.webassembly.js:1 Uncaught (in promise) TypeError: Converting circular structure to JSON
    --> starting at object with constructor 'HTMLButtonElement'
    |     property '_blazorEvents_1' -> object with constructor 'e'
    |     property 'handlers' -> object with constructor 'Object'
    |     property 'click' -> object with constructor 'Object'
    --- property 'element' closes the circle
    at JSON.stringify (<anonymous>)
    at blazor.webassembly.js:1

In case of a simple

element

blazor.webassembly.js:1 crit: Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer[100]
      Unhandled exception rendering component: An exception occurred executing JS interop: __internalId is required.. See InnerException for more details.
Microsoft.JSInterop.JSException: An exception occurred executing JS interop: __internalId is required.. See InnerException for more details.
 ---> System.Text.Json.JsonException: __internalId is required.
   at Microsoft.AspNetCore.Components.ElementReferenceJsonConverter.Read(Utf8JsonReader& reader, Type typeToConvert, JsonSerializerOptions options)
   at System.Text.Json.Serialization.JsonConverter`1[[Microsoft.AspNetCore.Components.ElementReference, Microsoft.AspNetCore.Components, Version=5.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].TryRead(Utf8JsonReader& reader, Type typeToConvert, JsonSerializerOptions options, ReadStack& state, ElementReference& value)
   at System.Text.Json.Serialization.JsonConverter`1[[Microsoft.AspNetCore.Components.ElementReference, Microsoft.AspNetCore.Components, Version=5.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].ReadCore(Utf8JsonReader& reader, JsonSerializerOptions options, ReadStack& state)
   at System.Text.Json.Serialization.JsonConverter`1[[Microsoft.AspNetCore.Components.ElementReference, Microsoft.AspNetCore.Components, Version=5.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].ReadCoreAsObject(Utf8JsonReader& reader, JsonSerializerOptions options, ReadStack& state)
   at System.Text.Json.JsonSerializer.ReadCore[Object](JsonConverter jsonConverter, Utf8JsonReader& reader, JsonSerializerOptions options, ReadStack& state)
   at System.Text.Json.JsonSerializer.ReadValueCore[Object](JsonSerializerOptions options, Utf8JsonReader& reader, ReadStack& state)
   at System.Text.Json.JsonSerializer.Deserialize(Utf8JsonReader& reader, Type returnType, JsonSerializerOptions options)
   at Microsoft.JSInterop.JSRuntime.EndInvokeJS(Int64 taskId, Boolean succeeded, Utf8JsonReader& jsonReader)
   --- End of inner exception stack trace ---
   at Microsoft.JSInterop.JSRuntime.<InvokeAsync>d__16`1[[Microsoft.AspNetCore.Components.ElementReference, Microsoft.AspNetCore.Components, Version=5.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].MoveNext()
   at Blazor.Components.Dialog.ModalDialog.Open() in D:\Projects\GitHub\blazor-components\src\Blazor.Components.Dialog\ModalDialog.razor:line 86
   at Blazor.Components.TestApps.Common.Components.Modal.ShowDialog() in D:\Projects\GitHub\blazor-components\src\Blazor.Components.TestApps.Common\Components\Modal.razor:line 83
   at Microsoft.AspNetCore.Components.ComponentBase.CallStateHasChangedOnAsyncCompletion(Task task)
   at Microsoft.AspNetCore.Components.RenderTree.Renderer.GetErrorHandledTask(Task taskToHandle)
f.printErr @ blazor.webassembly.js:1
f.preRun.push.window.Blazor._internal.dotNetCriticalError @ blazor.webassembly.js:1
w @ blazor.webassembly.js:1
_mono_wasm_invoke_js_blazor @ dotnet.5.0.0-rc.1.20451.14.js:1
do_icall @ 00ab618a:0x1944fd
do_icall_wrapper @ 00ab618a:0x79894
interp_exec_method @ 00ab618a:0x4442c
interp_runtime_invoke @ 00ab618a:0x12e8ab
mono_jit_runtime_invoke @ 00ab618a:0x118342
do_runtime_invoke @ 00ab618a:0x797dd
mono_runtime_try_invoke @ 00ab618a:0x13aa6
mono_runtime_invoke @ 00ab618a:0x10e12a
mono_wasm_invoke_method @ 00ab618a:0x1084ab
Module._mono_wasm_invoke_method @ dotnet.5.0.0-rc.1.20451.14.js:1
call_method @ dotnet.5.0.0-rc.1.20451.14.js:1
(anonymous) @ dotnet.5.0.0-rc.1.20451.14.js:1
endInvokeJSFromDotNet @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
Promise.then (async)
beginInvokeJSFromDotNet @ blazor.webassembly.js:1
w @ blazor.webassembly.js:1
_mono_wasm_invoke_js_blazor @ dotnet.5.0.0-rc.1.20451.14.js:1
do_icall @ 00ab618a:0x1944fd
do_icall_wrapper @ 00ab618a:0x79894
interp_exec_method @ 00ab618a:0x4442c
interp_runtime_invoke @ 00ab618a:0x12e8ab
mono_jit_runtime_invoke @ 00ab618a:0x118342
do_runtime_invoke @ 00ab618a:0x797dd
mono_runtime_invoke_checked @ 00ab618a:0xfee2
mono_runtime_try_invoke_array @ 00ab618a:0x10dd31
ves_icall_InternalInvoke @ 00ab618a:0xecc38
ves_icall_InternalInvoke_raw @ 00ab618a:0xec6fe
do_icall @ 00ab618a:0x19448a
do_icall_wrapper @ 00ab618a:0x79894
interp_exec_method @ 00ab618a:0x4442c
interp_runtime_invoke @ 00ab618a:0x12e8ab
mono_jit_runtime_invoke @ 00ab618a:0x118342
do_runtime_invoke @ 00ab618a:0x797dd
mono_runtime_try_invoke @ 00ab618a:0x13aa6
mono_runtime_invoke @ 00ab618a:0x10e12a
mono_wasm_invoke_method @ 00ab618a:0x1084ab
Module._mono_wasm_invoke_method @ dotnet.5.0.0-rc.1.20451.14.js:1
call_method @ dotnet.5.0.0-rc.1.20451.14.js:1
(anonymous) @ dotnet.5.0.0-rc.1.20451.14.js:1
beginInvokeDotNetFromJS @ blazor.webassembly.js:1
h @ blazor.webassembly.js:1
e.invokeMethodAsync @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
invokeWhenHeapUnlocked @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
t.dispatchEvent @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
e.onGlobalEvent @ blazor.webassembly.js:1
Show 23 more frames
blazor.webassembly.js:1 Unhandled exception rendering component: An exception occurred executing JS interop: __internalId is required.. See InnerException for more details.
blazor.webassembly.js:1 
f.printErr @ blazor.webassembly.js:1
put_char @ dotnet.5.0.0-rc.1.20451.14.js:1
write @ dotnet.5.0.0-rc.1.20451.14.js:1
write @ dotnet.5.0.0-rc.1.20451.14.js:1
doWritev @ dotnet.5.0.0-rc.1.20451.14.js:1
_fd_write @ dotnet.5.0.0-rc.1.20451.14.js:1
__stdio_write @ 00ab618a:0xd940d
__fwritex @ 00ab618a:0x7caa4
fwrite @ 00ab618a:0x6b55
fputs @ 00ab618a:0x59107
default_stderr_handler @ 00ab618a:0x197153
monoeg_g_printerr @ 00ab618a:0x19cbc
mono_print_unhandled_exception_internal @ 00ab618a:0x8d8b6
mono_unhandled_exception_checked @ 00ab618a:0x109fec
mono_unhandled_exception_internal @ 00ab618a:0x62483
mono_handle_exception_internal @ 00ab618a:0x93451
mono_handle_exception @ 00ab618a:0x93ba8
interp_throw @ 00ab618a:0x5edb
interp_exec_method @ 00ab618a:0x49161
interp_runtime_invoke @ 00ab618a:0x12e8ab
mono_jit_runtime_invoke @ 00ab618a:0x118342
do_runtime_invoke @ 00ab618a:0x797dd
mono_runtime_try_invoke @ 00ab618a:0x13aa6
mono_runtime_invoke @ 00ab618a:0x10e12a
mono_wasm_invoke_method @ 00ab618a:0x1084ab
Module._mono_wasm_invoke_method @ dotnet.5.0.0-rc.1.20451.14.js:1
call_method @ dotnet.5.0.0-rc.1.20451.14.js:1
(anonymous) @ dotnet.5.0.0-rc.1.20451.14.js:1
endInvokeJSFromDotNet @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
Promise.then (async)
beginInvokeJSFromDotNet @ blazor.webassembly.js:1
w @ blazor.webassembly.js:1
_mono_wasm_invoke_js_blazor @ dotnet.5.0.0-rc.1.20451.14.js:1
do_icall @ 00ab618a:0x1944fd
do_icall_wrapper @ 00ab618a:0x79894
interp_exec_method @ 00ab618a:0x4442c
interp_runtime_invoke @ 00ab618a:0x12e8ab
mono_jit_runtime_invoke @ 00ab618a:0x118342
do_runtime_invoke @ 00ab618a:0x797dd
mono_runtime_invoke_checked @ 00ab618a:0xfee2
mono_runtime_try_invoke_array @ 00ab618a:0x10dd31
ves_icall_InternalInvoke @ 00ab618a:0xecc38
ves_icall_InternalInvoke_raw @ 00ab618a:0xec6fe
do_icall @ 00ab618a:0x19448a
do_icall_wrapper @ 00ab618a:0x79894
interp_exec_method @ 00ab618a:0x4442c
interp_runtime_invoke @ 00ab618a:0x12e8ab
mono_jit_runtime_invoke @ 00ab618a:0x118342
do_runtime_invoke @ 00ab618a:0x797dd
mono_runtime_try_invoke @ 00ab618a:0x13aa6
mono_runtime_invoke @ 00ab618a:0x10e12a
mono_wasm_invoke_method @ 00ab618a:0x1084ab
Module._mono_wasm_invoke_method @ dotnet.5.0.0-rc.1.20451.14.js:1
call_method @ dotnet.5.0.0-rc.1.20451.14.js:1
(anonymous) @ dotnet.5.0.0-rc.1.20451.14.js:1
beginInvokeDotNetFromJS @ blazor.webassembly.js:1
h @ blazor.webassembly.js:1
e.invokeMethodAsync @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
invokeWhenHeapUnlocked @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
t.dispatchEvent @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
e.onGlobalEvent @ blazor.webassembly.js:1
Show 35 more frames
blazor.webassembly.js:1 Unhandled Exception:
f.printErr @ blazor.webassembly.js:1
put_char @ dotnet.5.0.0-rc.1.20451.14.js:1
write @ dotnet.5.0.0-rc.1.20451.14.js:1
write @ dotnet.5.0.0-rc.1.20451.14.js:1
doWritev @ dotnet.5.0.0-rc.1.20451.14.js:1
_fd_write @ dotnet.5.0.0-rc.1.20451.14.js:1
__stdio_write @ 00ab618a:0xd940d
__fwritex @ 00ab618a:0x7caa4
fwrite @ 00ab618a:0x6b55
fputs @ 00ab618a:0x59107
default_stderr_handler @ 00ab618a:0x197153
monoeg_g_printerr @ 00ab618a:0x19cbc
mono_print_unhandled_exception_internal @ 00ab618a:0x8d8b6
mono_unhandled_exception_checked @ 00ab618a:0x109fec
mono_unhandled_exception_internal @ 00ab618a:0x62483
mono_handle_exception_internal @ 00ab618a:0x93451
mono_handle_exception @ 00ab618a:0x93ba8
interp_throw @ 00ab618a:0x5edb
interp_exec_method @ 00ab618a:0x49161
interp_runtime_invoke @ 00ab618a:0x12e8ab
mono_jit_runtime_invoke @ 00ab618a:0x118342
do_runtime_invoke @ 00ab618a:0x797dd
mono_runtime_try_invoke @ 00ab618a:0x13aa6
mono_runtime_invoke @ 00ab618a:0x10e12a
mono_wasm_invoke_method @ 00ab618a:0x1084ab
Module._mono_wasm_invoke_method @ dotnet.5.0.0-rc.1.20451.14.js:1
call_method @ dotnet.5.0.0-rc.1.20451.14.js:1
(anonymous) @ dotnet.5.0.0-rc.1.20451.14.js:1
endInvokeJSFromDotNet @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
Promise.then (async)
beginInvokeJSFromDotNet @ blazor.webassembly.js:1
w @ blazor.webassembly.js:1
_mono_wasm_invoke_js_blazor @ dotnet.5.0.0-rc.1.20451.14.js:1
do_icall @ 00ab618a:0x1944fd
do_icall_wrapper @ 00ab618a:0x79894
interp_exec_method @ 00ab618a:0x4442c
interp_runtime_invoke @ 00ab618a:0x12e8ab
mono_jit_runtime_invoke @ 00ab618a:0x118342
do_runtime_invoke @ 00ab618a:0x797dd
mono_runtime_invoke_checked @ 00ab618a:0xfee2
mono_runtime_try_invoke_array @ 00ab618a:0x10dd31
ves_icall_InternalInvoke @ 00ab618a:0xecc38
ves_icall_InternalInvoke_raw @ 00ab618a:0xec6fe
do_icall @ 00ab618a:0x19448a
do_icall_wrapper @ 00ab618a:0x79894
interp_exec_method @ 00ab618a:0x4442c
interp_runtime_invoke @ 00ab618a:0x12e8ab
mono_jit_runtime_invoke @ 00ab618a:0x118342
do_runtime_invoke @ 00ab618a:0x797dd
mono_runtime_try_invoke @ 00ab618a:0x13aa6
mono_runtime_invoke @ 00ab618a:0x10e12a
mono_wasm_invoke_method @ 00ab618a:0x1084ab
Module._mono_wasm_invoke_method @ dotnet.5.0.0-rc.1.20451.14.js:1
call_method @ dotnet.5.0.0-rc.1.20451.14.js:1
(anonymous) @ dotnet.5.0.0-rc.1.20451.14.js:1
beginInvokeDotNetFromJS @ blazor.webassembly.js:1
h @ blazor.webassembly.js:1
e.invokeMethodAsync @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
invokeWhenHeapUnlocked @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
t.dispatchEvent @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
e.onGlobalEvent @ blazor.webassembly.js:1
Show 35 more frames
blazor.webassembly.js:1 System.Text.Json.JsonException: Invalid JSON
f.printErr @ blazor.webassembly.js:1
put_char @ dotnet.5.0.0-rc.1.20451.14.js:1
write @ dotnet.5.0.0-rc.1.20451.14.js:1
write @ dotnet.5.0.0-rc.1.20451.14.js:1
doWritev @ dotnet.5.0.0-rc.1.20451.14.js:1
_fd_write @ dotnet.5.0.0-rc.1.20451.14.js:1
__stdio_write @ 00ab618a:0xd940d
__fwritex @ 00ab618a:0x7caa4
fwrite @ 00ab618a:0x6b55
fputs @ 00ab618a:0x59107
default_stderr_handler @ 00ab618a:0x197153
monoeg_g_printerr @ 00ab618a:0x19cbc
mono_print_unhandled_exception_internal @ 00ab618a:0x8d8b6
mono_unhandled_exception_checked @ 00ab618a:0x109fec
mono_unhandled_exception_internal @ 00ab618a:0x62483
mono_handle_exception_internal @ 00ab618a:0x93451
mono_handle_exception @ 00ab618a:0x93ba8
interp_throw @ 00ab618a:0x5edb
interp_exec_method @ 00ab618a:0x49161
interp_runtime_invoke @ 00ab618a:0x12e8ab
mono_jit_runtime_invoke @ 00ab618a:0x118342
do_runtime_invoke @ 00ab618a:0x797dd
mono_runtime_try_invoke @ 00ab618a:0x13aa6
mono_runtime_invoke @ 00ab618a:0x10e12a
mono_wasm_invoke_method @ 00ab618a:0x1084ab
Module._mono_wasm_invoke_method @ dotnet.5.0.0-rc.1.20451.14.js:1
call_method @ dotnet.5.0.0-rc.1.20451.14.js:1
(anonymous) @ dotnet.5.0.0-rc.1.20451.14.js:1
endInvokeJSFromDotNet @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
Promise.then (async)
beginInvokeJSFromDotNet @ blazor.webassembly.js:1
w @ blazor.webassembly.js:1
_mono_wasm_invoke_js_blazor @ dotnet.5.0.0-rc.1.20451.14.js:1
do_icall @ 00ab618a:0x1944fd
do_icall_wrapper @ 00ab618a:0x79894
interp_exec_method @ 00ab618a:0x4442c
interp_runtime_invoke @ 00ab618a:0x12e8ab
mono_jit_runtime_invoke @ 00ab618a:0x118342
do_runtime_invoke @ 00ab618a:0x797dd
mono_runtime_invoke_checked @ 00ab618a:0xfee2
mono_runtime_try_invoke_array @ 00ab618a:0x10dd31
ves_icall_InternalInvoke @ 00ab618a:0xecc38
ves_icall_InternalInvoke_raw @ 00ab618a:0xec6fe
do_icall @ 00ab618a:0x19448a
do_icall_wrapper @ 00ab618a:0x79894
interp_exec_method @ 00ab618a:0x4442c
interp_runtime_invoke @ 00ab618a:0x12e8ab
mono_jit_runtime_invoke @ 00ab618a:0x118342
do_runtime_invoke @ 00ab618a:0x797dd
mono_runtime_try_invoke @ 00ab618a:0x13aa6
mono_runtime_invoke @ 00ab618a:0x10e12a
mono_wasm_invoke_method @ 00ab618a:0x1084ab
Module._mono_wasm_invoke_method @ dotnet.5.0.0-rc.1.20451.14.js:1
call_method @ dotnet.5.0.0-rc.1.20451.14.js:1
(anonymous) @ dotnet.5.0.0-rc.1.20451.14.js:1
beginInvokeDotNetFromJS @ blazor.webassembly.js:1
h @ blazor.webassembly.js:1
e.invokeMethodAsync @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
invokeWhenHeapUnlocked @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
t.dispatchEvent @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
e.onGlobalEvent @ blazor.webassembly.js:1
Show 35 more frames
blazor.webassembly.js:1    at Microsoft.JSInterop.Infrastructure.DotNetDispatcher.EndInvokeJS(JSRuntime jsRuntime, String arguments)
f.printErr @ blazor.webassembly.js:1
put_char @ dotnet.5.0.0-rc.1.20451.14.js:1
write @ dotnet.5.0.0-rc.1.20451.14.js:1
write @ dotnet.5.0.0-rc.1.20451.14.js:1
doWritev @ dotnet.5.0.0-rc.1.20451.14.js:1
_fd_write @ dotnet.5.0.0-rc.1.20451.14.js:1
__stdio_write @ 00ab618a:0xd940d
__fwritex @ 00ab618a:0x7caa4
fwrite @ 00ab618a:0x6b55
fputs @ 00ab618a:0x59107
default_stderr_handler @ 00ab618a:0x197153
monoeg_g_printerr @ 00ab618a:0x19cbc
mono_print_unhandled_exception_internal @ 00ab618a:0x8d8b6
mono_unhandled_exception_checked @ 00ab618a:0x109fec
mono_unhandled_exception_internal @ 00ab618a:0x62483
mono_handle_exception_internal @ 00ab618a:0x93451
mono_handle_exception @ 00ab618a:0x93ba8
interp_throw @ 00ab618a:0x5edb
interp_exec_method @ 00ab618a:0x49161
interp_runtime_invoke @ 00ab618a:0x12e8ab
mono_jit_runtime_invoke @ 00ab618a:0x118342
do_runtime_invoke @ 00ab618a:0x797dd
mono_runtime_try_invoke @ 00ab618a:0x13aa6
mono_runtime_invoke @ 00ab618a:0x10e12a
mono_wasm_invoke_method @ 00ab618a:0x1084ab
Module._mono_wasm_invoke_method @ dotnet.5.0.0-rc.1.20451.14.js:1
call_method @ dotnet.5.0.0-rc.1.20451.14.js:1
(anonymous) @ dotnet.5.0.0-rc.1.20451.14.js:1
endInvokeJSFromDotNet @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
Promise.then (async)
beginInvokeJSFromDotNet @ blazor.webassembly.js:1
w @ blazor.webassembly.js:1
_mono_wasm_invoke_js_blazor @ dotnet.5.0.0-rc.1.20451.14.js:1
do_icall @ 00ab618a:0x1944fd
do_icall_wrapper @ 00ab618a:0x79894
interp_exec_method @ 00ab618a:0x4442c
interp_runtime_invoke @ 00ab618a:0x12e8ab
mono_jit_runtime_invoke @ 00ab618a:0x118342
do_runtime_invoke @ 00ab618a:0x797dd
mono_runtime_invoke_checked @ 00ab618a:0xfee2
mono_runtime_try_invoke_array @ 00ab618a:0x10dd31
ves_icall_InternalInvoke @ 00ab618a:0xecc38
ves_icall_InternalInvoke_raw @ 00ab618a:0xec6fe
do_icall @ 00ab618a:0x19448a
do_icall_wrapper @ 00ab618a:0x79894
interp_exec_method @ 00ab618a:0x4442c
interp_runtime_invoke @ 00ab618a:0x12e8ab
mono_jit_runtime_invoke @ 00ab618a:0x118342
do_runtime_invoke @ 00ab618a:0x797dd
mono_runtime_try_invoke @ 00ab618a:0x13aa6
mono_runtime_invoke @ 00ab618a:0x10e12a
mono_wasm_invoke_method @ 00ab618a:0x1084ab
Module._mono_wasm_invoke_method @ dotnet.5.0.0-rc.1.20451.14.js:1
call_method @ dotnet.5.0.0-rc.1.20451.14.js:1
(anonymous) @ dotnet.5.0.0-rc.1.20451.14.js:1
beginInvokeDotNetFromJS @ blazor.webassembly.js:1
h @ blazor.webassembly.js:1
e.invokeMethodAsync @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
invokeWhenHeapUnlocked @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
t.dispatchEvent @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
e.onGlobalEvent @ blazor.webassembly.js:1
Show 35 more frames
blazor.webassembly.js:1    at Microsoft.AspNetCore.Components.WebAssembly.Services.DefaultWebAssemblyJSRuntime.EndInvokeJS(String argsJson)
f.printErr @ blazor.webassembly.js:1
put_char @ dotnet.5.0.0-rc.1.20451.14.js:1
write @ dotnet.5.0.0-rc.1.20451.14.js:1
write @ dotnet.5.0.0-rc.1.20451.14.js:1
doWritev @ dotnet.5.0.0-rc.1.20451.14.js:1
_fd_write @ dotnet.5.0.0-rc.1.20451.14.js:1
__stdio_write @ 00ab618a:0xd940d
__fwritex @ 00ab618a:0x7caa4
fwrite @ 00ab618a:0x6b55
fputs @ 00ab618a:0x59107
default_stderr_handler @ 00ab618a:0x197153
monoeg_g_printerr @ 00ab618a:0x19cbc
mono_print_unhandled_exception_internal @ 00ab618a:0x8d8b6
mono_unhandled_exception_checked @ 00ab618a:0x109fec
mono_unhandled_exception_internal @ 00ab618a:0x62483
mono_handle_exception_internal @ 00ab618a:0x93451
mono_handle_exception @ 00ab618a:0x93ba8
interp_throw @ 00ab618a:0x5edb
interp_exec_method @ 00ab618a:0x49161
interp_runtime_invoke @ 00ab618a:0x12e8ab
mono_jit_runtime_invoke @ 00ab618a:0x118342
do_runtime_invoke @ 00ab618a:0x797dd
mono_runtime_try_invoke @ 00ab618a:0x13aa6
mono_runtime_invoke @ 00ab618a:0x10e12a
mono_wasm_invoke_method @ 00ab618a:0x1084ab
Module._mono_wasm_invoke_method @ dotnet.5.0.0-rc.1.20451.14.js:1
call_method @ dotnet.5.0.0-rc.1.20451.14.js:1
(anonymous) @ dotnet.5.0.0-rc.1.20451.14.js:1
endInvokeJSFromDotNet @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
Promise.then (async)
beginInvokeJSFromDotNet @ blazor.webassembly.js:1
w @ blazor.webassembly.js:1
_mono_wasm_invoke_js_blazor @ dotnet.5.0.0-rc.1.20451.14.js:1
do_icall @ 00ab618a:0x1944fd
do_icall_wrapper @ 00ab618a:0x79894
interp_exec_method @ 00ab618a:0x4442c
interp_runtime_invoke @ 00ab618a:0x12e8ab
mono_jit_runtime_invoke @ 00ab618a:0x118342
do_runtime_invoke @ 00ab618a:0x797dd
mono_runtime_invoke_checked @ 00ab618a:0xfee2
mono_runtime_try_invoke_array @ 00ab618a:0x10dd31
ves_icall_InternalInvoke @ 00ab618a:0xecc38
ves_icall_InternalInvoke_raw @ 00ab618a:0xec6fe
do_icall @ 00ab618a:0x19448a
do_icall_wrapper @ 00ab618a:0x79894
interp_exec_method @ 00ab618a:0x4442c
interp_runtime_invoke @ 00ab618a:0x12e8ab
mono_jit_runtime_invoke @ 00ab618a:0x118342
do_runtime_invoke @ 00ab618a:0x797dd
mono_runtime_try_invoke @ 00ab618a:0x13aa6
mono_runtime_invoke @ 00ab618a:0x10e12a
mono_wasm_invoke_method @ 00ab618a:0x1084ab
Module._mono_wasm_invoke_method @ dotnet.5.0.0-rc.1.20451.14.js:1
call_method @ dotnet.5.0.0-rc.1.20451.14.js:1
(anonymous) @ dotnet.5.0.0-rc.1.20451.14.js:1
beginInvokeDotNetFromJS @ blazor.webassembly.js:1
h @ blazor.webassembly.js:1
e.invokeMethodAsync @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
invokeWhenHeapUnlocked @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
t.dispatchEvent @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
(anonymous) @ blazor.webassembly.js:1
e.onGlobalEvent @ blazor.webassembly.js:1
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dotnet.5.0.0-rc.1.20451.14.js:1 Uncaught (in promise) Error: System.Text.Json.JsonException: Invalid JSON
   at Microsoft.JSInterop.Infrastructure.DotNetDispatcher.EndInvokeJS(JSRuntime jsRuntime, String arguments)
   at Microsoft.AspNetCore.Components.WebAssembly.Services.DefaultWebAssemblyJSRuntime.EndInvokeJS(String argsJson)
    at Object.call_method (dotnet.5.0.0-rc.1.20451.14.js:1)
    at dotnet.5.0.0-rc.1.20451.14.js:1
    at Object.endInvokeJSFromDotNet (blazor.webassembly.js:1)
    at blazor.webassembly.js:1

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