AJAX calls in IFRAME

Question

So i created game (backend in c#). If you click on some image, AJAX will handle this and call function in backend c#. This works perfectly on my website. But if i am trying to do this on school website, where they use iframe to show my website, then these AJAX calls return internal server error 500.

Answer 1

Here is error message from server.

2021-05-15 19:12:49.262 +00:00 [Error] Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddleware: An unhandled exception has occurred while executing the request.

System.ArgumentNullException: Buffer cannot be null. (Parameter 'buffer')at

System.IO.MemoryStream..ctor(Byte[] buffer, Boolean writable)at

System.IO.MemoryStream..ctor(Byte[] buffer)at

Microsoft.AspNetCore.Http.SessionExtensionsTuke.GetObject(ISession session, String key) in C:\Users\adamb\Desktop\bak\bakalarka-appka\Bakalarka\SessionExtensionsTuke.cs:line 12at Bakalarka.Controllers.GameController.Choose(Int32 index) in C:\Users\adamb\Desktop\bak\bakalarka-appka\Bakalarka\Controllers\GameController.cs:line 29at lambda_method(Closure, Object, Object[] )at

Microsoft.Extensions.Internal.ObjectMethodExecutor.Execute(Object target, Object[] parameters)at

Microsoft.AspNetCore.Mvc.Infrastructure.ActionMethodExecutor.SyncActionResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments)at

Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeActionMethodAsync()at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)at

Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeNextActionFilterAsync()--- End of stack trace from previous location where exception was thrown ---at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Rethrow(ActionExecutedContextSealed context)at

Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)at

Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.g__Awaited|13_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)at

Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|24_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)at

Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResourceExecutedContextSealed context)at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)at

Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|19_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)at

Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope)at Microsoft.AspNetCore.Routing.EndpointMiddleware.g__AwaitRequestTask|6_0(Endpoint endpoint, Task requestTask, ILogger logger)at

Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)at Microsoft.AspNetCore.Session.SessionMiddleware.Invoke(HttpContext context)at

Microsoft.AspNetCore.Session.SessionMiddleware.Invoke(HttpContext context)at

Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)at

Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddleware.g__Awaited|6_0(ExceptionHandlerMiddleware middleware, HttpContext context, Task task)