Bug or misuse? "JavaScript Inline Code" component throws 500 internal server error. Because of "node analysis worker"

[loelindstrom]

What I'm doing

It seems like overnight, "Javascript Inline Code" components stopped working for me when I try to develop Logic App workflows locally in VS Code.

I've created a very simple workflow to demonstrate:

Click to see workflow.json

{
    "definition": {
        "$schema": "[https://schema.management.azure.com/providers/Microsoft.Logic/schemas/2016-06-01/workflowdefinition.json#"](https://schema.management.azure.com/providers/Microsoft.Logic/schemas/2016-06-01/workflowdefinition.json#%22),
        "actions": {
            "Initialize_variable": {
                "type": "InitializeVariable",
                "inputs": {
                    "variables": [
                        {
                            "name": "someVariable",
                            "type": "boolean",
                            "value": false
                        }
                    ]
                },
                "runAfter": {}
            },
            "Execute_JavaScript_Code": {
                "type": "JavaScriptCode",
                "inputs": {
                    "code": "let i = 1;"
                },
                "runAfter": {
                    "Initialize_variable": [
                        "SUCCEEDED"
                    ]
                }
            }
        },
        "contentVersion": "1.0.0.0",
        "outputs": {},
        "triggers": {
            "Recurrence": {
                "type": "Recurrence",
                "recurrence": {
                    "interval": 1,
                    "frequency": "Week"
                }
            }
        }
    },
    "kind": "Stateful"
}

What's happening

With this I get the stack trace seen below in the log excerpt.
But if I remove the "Javascript Inline Code" component the Logic App starts up and runs fine locally.

Click to see stack trace/log excerpt

[2024-10-10T09:15:37.720Z] registered http endpoint = http://localhost:7071/runtime/webhooks/blobs
[2024-10-10T09:15:38.138Z] Initializing Host. OperationId: '6d7ef3dd-726d-40ee-8559-9ae9fb50ee23'.
[2024-10-10T09:15:38.139Z] Host initialization: ConsecutiveErrors=0, StartupCount=2, OperationId=6d7ef3dd-726d-40ee-8559-9ae9fb50ee23
[2024-10-10T09:15:38.170Z] Loading functions metadata
[2024-10-10T09:15:38.171Z] Reading functions metadata (Host)
[2024-10-10T09:15:38.177Z] 0 functions found (Host)
[2024-10-10T09:15:38.181Z] Reading functions metadata (Custom)
[2024-10-10T09:15:42.837Z] Outgoing HTTP request ends with server failure: correlationId='53c799ce-7607-43c3-bb99-df7b2c54a4b8', operationName='FlowHttpEngine.CallCachedHttpEndpoint', httpMethod='POST', hostName='localhost', targetUri='http://localhost:60470', clientRequestId='', clientSessionId='', clientApplicationId='', apiVersion='', contentLength='-1', serviceRequestId='', durationInMilliseconds='4088', httpStatusCode='0', exceptionMessage='System.Net.Sockets.SocketException (10061): No connection could be made because the target machine actively refused it.
[2024-10-10T09:15:42.839Z]    at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.ThrowException(SocketError error, CancellationToken cancellationToken)
[2024-10-10T09:15:42.840Z]    at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.System.Threading.Tasks.Sources.IValueTaskSource.GetResult(Int16 token)
[2024-10-10T09:15:42.842Z]    at System.Net.Sockets.Socket.<ConnectAsync>g__WaitForConnectWithCancellation|277_0(AwaitableSocketAsyncEventArgs saea, ValueTask connectTask, CancellationToken cancellationToken)
[2024-10-10T09:15:42.844Z]    at System.Net.Http.HttpConnectionPool.ConnectToTcpHostAsync(String host, Int32 port, HttpRequestMessage initialRequest, Boolean async, CancellationToken cancellationToken)', errorCode='', errorMessage='', referer='<null>', failureCause='', contentType='', contentEncoding='', armServiceRequestId='', organizationId='', activityVector='IN.05', locale='', additionalProperties='', targetResourceProvider='', targetResourceType='', extensionVersion='1.91.14.0', siteName='UNDEFINED_SITE_NAME', slotName='', activityId='53c799ce-7607-43c3-bb99-df7b2c54a4b8'.
[2024-10-10T09:15:43.570Z] Workflow Info: operationName='NodeProcessHandler.StartNodeProcessIfNotStarted', message='standard out from node process: 'Node language worker running at [http://localhost:61614/''](http://localhost:61614/%27%27), exception='', extensionVersion='1.91.14.0', siteName='UNDEFINED_SITE_NAME', slotName='', activityId='53c799ce-7607-43c3-bb99-df7b2c54a4b8'.
[2024-10-10T09:15:43.571Z] Workflow Info: operationName='NodeProcessHandler.StartNodeProcessIfNotStarted', message='Using node analysis worker on port '61614'. Startup time was '409' milliseconds.', exception='', extensionVersion='1.91.14.0', siteName='UNDEFINED_SITE_NAME', slotName='', activityId='53c799ce-7607-43c3-bb99-df7b2c54a4b8'.
[2024-10-10T09:15:47.671Z] Outgoing HTTP request ends with server failure: correlationId='53c799ce-7607-43c3-bb99-df7b2c54a4b8', operationName='POST/', httpMethod='POST', hostName='localhost',
targetUri='http://localhost:61614', clientRequestId='30d70a06b2df4ba695a7d978f4ecd1d5', clientSessionId='', clientApplicationId='', apiVersion='', contentLength='-1', serviceRequestId='', durationInMilliseconds='4087', httpStatusCode='0', exceptionMessage='System.Net.Sockets.SocketException (10061): No connection could be made because the target machine actively refused it.
[2024-10-10T09:15:47.673Z]    at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.ThrowException(SocketError error, CancellationToken cancellationToken)
[2024-10-10T09:15:47.674Z]    at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.System.Threading.Tasks.Sources.IValueTaskSource.GetResult(Int16 token)
[2024-10-10T09:15:47.675Z]    at System.Net.Sockets.Socket.<ConnectAsync>g__WaitForConnectWithCancellation|277_0(AwaitableSocketAsyncEventArgs saea, ValueTask connectTask, CancellationToken cancellationToken)
[2024-10-10T09:15:47.676Z]    at System.Net.Http.HttpConnectionPool.ConnectToTcpHostAsync(String host, Int32 port, HttpRequestMessage initialRequest, Boolean async, CancellationToken cancellationToken)', errorCode='', errorMessage='', referer='<null>', failureCause='', contentType='', contentEncoding='', armServiceRequestId='', organizationId='', activityVector='IN.07', locale='', additionalProperties='', targetResourceProvider='', targetResourceType='', extensionVersion='1.91.14.0', siteName='UNDEFINED_SITE_NAME', slotName='', activityId='53c799ce-7607-43c3-bb99-df7b2c54a4b8'.
[2024-10-10T09:15:47.714Z] Workflow 'my-workflow' validation and creation failed. Error: ''No connection could be made because the target machine actively refused it. (localhost:61614)'. Status code: 'InternalServerError'.'
[2024-10-10T09:15:47.716Z] Workflow Error: operationName='WorkflowFunctionDefinitionProvider.ProcessWorkflow', message='Workflow 'my-workflow' validation and creation failed. Error: ''No connection could be made because the target machine actively refused it. (localhost:61614)'. Status code: 'InternalServerError'.'', exception='Microsoft.Azure.Workflows.Common.ErrorResponses.ErrorResponseMessageException: 'No connection could be made because the target machine actively refused it. (localhost:61614)'. Status code: 'InternalServerError'.
[2024-10-10T09:15:47.717Z]  ---> System.Net.Http.HttpRequestException: No connection could be made because the target machine actively refused it. (localhost:61614)
[2024-10-10T09:15:47.718Z]  ---> System.Net.Sockets.SocketException (10061): No connection could be made because the target machine actively refused it.
[2024-10-10T09:15:47.719Z]    at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.ThrowException(SocketError error, CancellationToken cancellationToken)
[2024-10-10T09:15:47.721Z]    at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.System.Threading.Tasks.Sources.IValueTaskSource.GetResult(Int16 token)
[2024-10-10T09:15:47.722Z]    at System.Net.Sockets.Socket.<ConnectAsync>g__WaitForConnectWithCancellation|277_0(AwaitableSocketAsyncEventArgs saea, ValueTask connectTask, CancellationToken cancellationToken)
[2024-10-10T09:15:47.723Z]    at System.Net.Http.HttpConnectionPool.ConnectToTcpHostAsync(String host, Int32 port, HttpRequestMessage initialRequest, Boolean async, CancellationToken cancellationToken)
[2024-10-10T09:15:47.724Z]    --- End of inner exception stack trace ---
[2024-10-10T09:15:47.725Z]    at System.Net.Http.HttpConnectionPool.ConnectToTcpHostAsync(String host, Int32 port, HttpRequestMessage initialRequest, Boolean async, CancellationToken cancellationToken)
[2024-10-10T09:15:47.727Z]    at System.Net.Http.HttpConnectionPool.ConnectAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
[2024-10-10T09:15:47.728Z]    at System.Net.Http.HttpConnectionPool.CreateHttp11ConnectionAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
[2024-10-10T09:15:47.729Z]    at System.Net.Http.HttpConnectionPool.AddHttp11ConnectionAsync(HttpRequestMessage request)
[2024-10-10T09:15:47.730Z]    at System.Threading.Tasks.TaskCompletionSourceWithCancellation`1.WaitWithCancellationAsync(CancellationToken cancellationToken)
[2024-10-10T09:15:47.731Z]    at System.Net.Http.HttpConnectionPool.GetHttp11ConnectionAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
[2024-10-10T09:15:47.733Z]    at System.Net.Http.HttpConnectionPool.SendWithVersionDetectionAndRetryAsync(HttpRequestMessage request, Boolean async, Boolean doRequestAuth, CancellationToken cancellationToken)
[2024-10-10T09:15:47.734Z]    at System.Net.Http.DecompressionHandler.SendAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
[2024-10-10T09:15:47.735Z]    at System.Net.Http.HttpClient.<SendAsync>g__Core|83_0(HttpRequestMessage request, HttpCompletionOption completionOption, CancellationTokenSource cts, Boolean disposeCts, CancellationTokenSource pendingRequestsCts, CancellationToken originalCancellationToken)
[2024-10-10T09:15:47.736Z]    at Microsoft.WindowsAzure.ResourceStack.Common.EventSources.IHttpEventSourceExtensions.TraceHttpOutgoingRequest(IHttpEventSource eventSource, String operationName, HttpRequestMessage request, Func`1 action, String targetResourceProvider, String targetResourceType)
[2024-10-10T09:15:47.737Z]    at Microsoft.Azure.Workflows.Data.DataProviders.PlatformFunctionEndpointDataProvider.GetResponse(HttpRequestMessage requestMessage, CancellationToken cancellationToken)
[2024-10-10T09:15:47.739Z]    at Microsoft.Azure.Workflows.Data.DataProviders.PlatformFunctionEndpointDataProvider.<>c__DisplayClass11_0`1.<<CallFunctionEndpoint>b__0>d.MoveNext()
[2024-10-10T09:15:47.740Z] --- End of stack trace from previous location ---
[2024-10-10T09:15:47.741Z]    at Microsoft.WindowsAzure.ResourceStack.Common.Algorithms.AsyncRetry.Retry[T](Func`1 action, Int32 retryCount, TimeSpan retryInterval, CancellationToken cancellationToken, Nullable`1 retryTimeout, Func`2 isRetryable, Action`1 errorAction, Func`2 retryAfter)
[2024-10-10T09:15:47.742Z]    at Microsoft.Azure.Workflows.Data.DataProviders.PlatformFunctionEndpointDataProvider.CallFunctionEndpoint[TResponse](String accessToken, Int32 retryCount, TimeSpan retryInterval, TimeSpan retryTimeout, Uri functionTriggerUri, HttpMethod httpMethod, JToken functionInputContent, CancellationToken cancellationToken)
[2024-10-10T09:15:47.743Z]    --- End of inner exception stack trace ---
[2024-10-10T09:15:47.744Z]    at Microsoft.Azure.Workflows.Web.Engines.EdgeFlowWebManagementEngine.GetActionDependencies(String actionName, String actionCode)
[2024-10-10T09:15:47.746Z]    at Microsoft.Azure.Workflows.Web.Engines.EdgeFlowWebManagementEngine.<GetInlineCodeActionsGeneratedDependencies>b__28_3(KeyValuePair`2 actionKvp)
[2024-10-10T09:15:47.747Z]    at Microsoft.WindowsAzure.ResourceStack.Common.Extensions.ConcurrencyExtensions.AggregateOperationsConcurrently[TElement,TResult,TAccumulate](IEnumerable`1 source, Func`2 operation, TAccumulate seed, Func`3 accumulator, Int32 concurrencyLimit, CancellationToken cancellationToken)
[2024-10-10T09:15:47.748Z]    at Microsoft.Azure.Workflows.Web.Engines.EdgeFlowWebManagementEngine.GetInlineCodeActionsGeneratedDependencies(FlowPropertiesDefinition definition)
[2024-10-10T09:15:47.749Z]    at Microsoft.Azure.Workflows.Web.Engines.EdgeFlowWebManagementEngine.GetTemplateRuntimeContext(String appName, FlowPropertiesDefinition definition, String flowName, Flow existingFlow, EdgeConnectionReferencesDefinition edgeConnectionReferencesDefinition, InsensitiveDictionary`1 appSettings, String groupName)
[2024-10-10T09:15:47.750Z]    at Microsoft.Azure.Workflows.Web.Engines.EdgeFlowWebManagementEngine.ValidateAndCreateFlow(String appName, String flowName, FlowPropertiesDefinition flowPropertiesDefinition, String resourceGroup)
[2024-10-10T09:15:47.752Z]    at Microsoft.WindowsAzure.ResourceStack.Common.Algorithms.AsyncRetry.Retry(Func`1 action, Int32 retryCount, TimeSpan retryInterval, CancellationToken cancellationToken, Nullable`1 retryTimeout, Func`2 isRetryable, Action`1 errorAction, Func`2 retryAfter)
[2024-10-10T09:15:47.753Z]    at Microsoft.Azure.Workflows.WebJobs.Extensions.Initialization.WorkflowFunctionDefinitionProvider.<>c__DisplayClass84_0.<<ProcessWorkflow>b__0>d.MoveNext()        
[2024-10-10T09:15:47.755Z] --- End of stack trace from previous location ---
[2024-10-10T09:15:47.756Z]    at Microsoft.Azure.Workflows.Templates.Engines.TemplateEngine.HandleTemplateException[T](Func`1 protectedMethod, HttpStatusCode statusCode)
[2024-10-10T09:15:47.757Z]    at Microsoft.Azure.Workflows.WebJobs.Extensions.Initialization.WorkflowFunctionDefinitionProvider.ProcessWorkflow(FlowFunction flowFunction, ConcurrentDictionary`2 flowsProcessed)', extensionVersion='1.91.14.0', siteName='UNDEFINED_SITE_NAME', slotName='', activityId='53c799ce-7607-43c3-bb99-df7b2c54a4b8'.

These two seem like interesting log entries:
[2024-10-10T09:15:43.571Z] Workflow Info: operationName='NodeProcessHandler.StartNodeProcessIfNotStarted', message='Using node analysis worker on port '61614'. Startup time was '409' milliseconds.', exception='', extensionVersion='1.91.14.0', siteName='UNDEFINED_SITE_NAME', slotName='', activityId='53c799ce-7607-43c3-bb99-df7b2c54a4b8'.

[2024-10-10T09:15:47.671Z] Outgoing HTTP request ends with server failure: correlationId='53c799ce-7607-43c3-bb99-df7b2c54a4b8', operationName='POST/', httpMethod='POST', hostName='localhost', targetUri='http://localhost:61614', clientRequestId='30d70a06b2df4ba695a7d978f4ecd1d5', clientSessionId='', clientApplicationId='', apiVersion='', contentLength='-1', serviceRequestId='', durationInMilliseconds='4087', httpStatusCode='0', exceptionMessage='System.Net.Sockets.SocketException (10061): No connection could be made because the target machine actively refused it.

Please help!

Anyone got an idea what's going on?
From the logs it seems like some Node process ("node analysis worker") is starting locally and is not working as expected. Is it some configuration I am missing? Is it calling out to some Azure stuff and it's a firewall thing? The error message is not clear to me.
Perhaps someone has an idea on how I could investigate it even further?
It's also weird that it just appeared from one day to another..

It seems like the same problem as this, but their solutions are workarounds, suggesting it's a bug:

• Node worker did not start properly ('30' second timeout) #659

Specs

IDE: VS Code 1.94.0
Logic App edition: Standard (using latest VS Code extension)
OS: Windows 10
Core Tools Version: 4.0.5455 Commit hash: N/A (64-bit)
Function Runtime Version: 4.27.5.21554