JsonException on every interaction with StandaloneCodeEditor

[doringaiu]

Hello, I have a Blazor Server app with dotnet version 6 and on every interaction with StandaloneCodeEditor I get these Error messages in the browser console. The functionality of the editor itself is not affected, everything works with no problems. How to get rid of this jsonexception error spam ?

Here is the Error: Uncaught (in promise) Error: System.Text.Json.JsonException: The JSON value could not be converted to System.String. Path: $ | LineNumber: 0 | BytePositionInLine: 1. ---> System.InvalidOperationException: Cannot get the value of a token type 'StartObject' as a string. at System.Text.Json.ThrowHelper.ThrowInvalidOperationException_ExpectedString(JsonTokenType tokenType) at System.Text.Json.Utf8JsonReader.GetString() at System.Text.Json.Serialization.JsonConverter1.TryRead(Utf8JsonReader& reader, Type typeToConvert, JsonSerializerOptions options, ReadStack& state, T& value) at System.Text.Json.Serialization.JsonConverter1.ReadCore(Utf8JsonReader& reader, JsonSerializerOptions options, ReadStack& state) --- End of inner exception stack trace --- at System.Text.Json.ThrowHelper.ReThrowWithPath(ReadStack& state, Utf8JsonReader& reader, Exception ex) at System.Text.Json.Serialization.JsonConverter1.ReadCore(Utf8JsonReader& reader, JsonSerializerOptions options, ReadStack& state) at System.Text.Json.Serialization.JsonConverter1.ReadCoreAsObject(Utf8JsonReader& reader, JsonSerializerOptions options, ReadStack& state) at System.Text.Json.JsonSerializer.ReadCore[TValue](Utf8JsonReader& reader, JsonTypeInfo jsonTypeInfo, ReadStack& state) at System.Text.Json.JsonSerializer.Read[TValue](Utf8JsonReader& reader, JsonTypeInfo jsonTypeInfo) at Microsoft.JSInterop.Infrastructure.DotNetDispatcher.ParseArguments(JSRuntime jsRuntime, String methodIdentifier, String arguments, Type[] parameterTypes) at Microsoft.JSInterop.Infrastructure.DotNetDispatcher.InvokeSynchronously(JSRuntime jsRuntime, DotNetInvocationInfo& callInfo, IDotNetObjectReference objectReference, String argsJson) at Microsoft.JSInterop.Infrastructure.DotNetDispatcher.BeginInvokeDotNet(JSRuntime jsRuntime, DotNetInvocationInfo invocationInfo, String argsJson)

I tried placing blazor monaco scripts imports in host.cshtml before and after blazor.server.js but this doesn't change anything.

[serdarciplak]

Hi @doringaiu. According to the stack trace, it looks like an issue with the json value being returned from JS to dotnet. Do you have a special json related use-case (e.g. special formatting options, encoding, etc) anywhere in your app?

[serdarciplak]

Closed due to inactivity.