was not recognized as a valid DateTime. at System.DateTimeParse.Parse(ReadOnlySpan1 s, DateTimeFormatInfo dtfi, DateTimeStyles styles)

1
System.FormatException: String ''">eval(atob("REDACTED"))' was not recognized as a valid DateTime.
at System.DateTimeParse.Parse(ReadOnlySpan1 s, DateTimeFormatInfo dtfi, DateTimeStyles styles) at System.DateTime.Parse(String s, IFormatProvider provider, DateTimeStyles styles) at Hangfire.Common.JobHelper.DeserializeDateTime(String value) at Hangfire.RecurringJobEntity..ctor(String recurringJobId, IDictionary2 recurringJob, ITimeZoneResolver timeZoneResolver, DateTime now)
at Hangfire.RecurringJobExtensions.GetRecurringJob(IStorageConnection connection, String recurringJobId, ITimeZoneResolver timeZoneResolver, DateTime now)
at Hangfire.Server.RecurringJobScheduler.TryEnqueueBackgroundJob(BackgroundProcessContext context, IStorageConnection connection, String recurringJobId, DateTime now)
at Hangfire.Server.RecurringJobScheduler.<>c__DisplayClass18_0.b__0(IStorageConnection connection)
at Hangfire.Server.RecurringJobScheduler.UseConnectionDistributedLock[T](JobStorage storage, Func2 action) at Hangfire.Server.RecurringJobScheduler.EnqueueNextRecurringJobs(BackgroundProcessContext context) at Hangfire.Server.RecurringJobScheduler.Execute(BackgroundProcessContext context) at Hangfire.Server.BackgroundProcessDispatcherBuilder.ExecuteProcess(Guid executionId, Object state) at Hangfire.Processing.BackgroundExecution.Run(Action2 callback, Object state)

2
: Microsoft.AspNetCore.Server.Kestrel[13]
Connection id "0HMM8KB6083SV", Request id "0HMM8KB6083SV:0000000B": An unhandled exception was thrown by the application.
Newtonsoft.Json.JsonReaderException: Unterminated string. Expected delimiter: '. Path '', line 1, position 636.
at Newtonsoft.Json.JsonTextReader.ReadStringIntoBuffer(Char quote)
at Newtonsoft.Json.JsonTextReader.ParseString(Char quote, ReadType readType)
at Newtonsoft.Json.JsonTextReader.ParseValue()
at Newtonsoft.Json.JsonReader.ReadForType(JsonContract contract, Boolean hasConverter)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)
at Hangfire.Common.SerializationHelper.Deserialize(String value, Type type, SerializationOption option)
--- End of stack trace from previous location ---
at Hangfire.Common.SerializationHelper.Deserialize(String value, Type type, SerializationOption option)
at Hangfire.Common.SerializationHelper.Deserialize[T](String value, SerializationOption option)
at Hangfire.Common.SerializationHelper.Deserialize[T](String value)
at Hangfire.Storage.InvocationData.DeserializePayload(String payload)
at Hangfire.Storage.StorageConnectionExtensions.GetRecurringJobDtos(IStorageConnection connection, IEnumerable1 ids) at Hangfire.Storage.StorageConnectionExtensions.GetRecurringJobs(JobStorageConnection connection, Int32 startingFrom, Int32 endingAt) at Hangfire.Dashboard.Pages.RecurringJobsPage.Execute() at Hangfire.Dashboard.RazorPage.TransformText(String body) at Hangfire.Dashboard.RazorPageDispatcher.Dispatch(DashboardContext context) at Hangfire.Dashboard.AspNetCoreDashboardMiddleware.Invoke(HttpContext httpContext) at Microsoft.AspNetCore.Builder.Extensions.MapMiddleware.Invoke(HttpContext context) at Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware.Invoke(HttpContext httpContext) at Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware.Invoke(HttpContext httpContext, ISwaggerProvider swaggerProvider) at Microsoft.WebTools.BrowserLink.Net.BrowserLinkMiddleware.ExecuteWithFilterAsync(IHttpSocketAdapter injectScriptSocket, String requestId, HttpContext httpContext) at Microsoft.AspNetCore.Watch.BrowserRefresh.BrowserRefreshMiddleware.InvokeAsync(HttpContext context) at Microsoft.AspNetCore.Builder.Extensions.MapWhenMiddleware.Invoke(HttpContext context) at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol.ProcessRequests[TContext](IHttpApplication1 application)

3
http://127.0.0.1:9999/job/recurring Cannot be opened!!!

Start by reproducing the failure through the recurring jobs dashboard at /job/recurring, then trace the reported entry points: JobHelper.DeserializeDateTime, RecurringJobEntity, SerializationHelper.Deserialize, and InvocationData.DeserializePayload. Compare the recurring-job data involved in both stack traces and determine what behavior should be preserved or reported when it cannot be parsed; done means the recurring jobs page and scheduler handle the malformed data without these unhandled exceptions.

Written by the indexing model from the issue text.