Response.Redirect [Answered]RSS

• • Reply
  brucey

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  Response.Redirect

  Jan 08, 2019 05:10 PM|brucey|LINK

  Hi everyone, within my controller I have a method to check some logic, if false the user needs to be redirected to another website,

  but I receive the following error; 

  "The required anti-forgery form field "__RequestVerificationToken" is not present."

  If i replace Response.Redirect with a return Redirect to a page within the website everything works ok, but I need to redirect the user to another website...

  Any help much appreciated as always :)

                  [HttpPost]
  		[ValidateAntiForgeryToken]
  		public ActionResult ValidateApplication(bool status)
  		{
  
  			if (status != true)
  			{
  				Response.Redirect("https://somewebsite");
  			}
  			else
  			{
  				return RedirectToUmbracoPage();
  			}
  		}

• • Reply
  mgebhard

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  Re: Response.Redirect

  Jan 08, 2019 06:15 PM|mgebhard|LINK

  I assume you forgot to add the antiforgery token to the HTML form within the View.

• • Reply
  brucey

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  Re: Response.Redirect

  Jan 08, 2019 07:31 PM|brucey|LINK

  Thanks, I have now added the following code to the view;

  @Html.AntiForgeryToken()

   Now receiving this error;

  An exception of type 'System.Web.HttpException' occurred in System.Web.dll but was not handled in user code
  Additional information: Server cannot append header after HTTP headers have been sent. occurred

• • Reply
  mgebhard

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  Re: Response.Redirect

  Jan 08, 2019 07:49 PM|mgebhard|LINK

  brucey

  Thanks, I have now added the following code to the view;

  @Html.AntiForgeryToken()

   Now receiving this error;

  An exception of type 'System.Web.HttpException' occurred in System.Web.dll but was not handled in user code
  Additional information: Server cannot append header after HTTP headers have been sent. occurred

  The construct in MVC is to return a Redirect.

   return Redirect("https://www.google.com");

• • Reply
  brucey

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  Re: Response.Redirect

  Jan 08, 2019 07:57 PM|brucey|LINK

  I added the code 

   return Redirect("https://www.google.com");

  but, now receiving this error; 

  Server Error in '/' Application.

  ---

  A potentially dangerous Request.Path value was detected from the client (:).

• • Reply
  mgebhard

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  Re: Response.Redirect

  Jan 08, 2019 08:18 PM|mgebhard|LINK

  Redirect has always worked.  The error message is related to the client making a request to your site not redirecting to google.  I assume the error is not related to return Redirect but a bug in your code base.

  Please take a moment to review and debug your code.  If you need help troubleshooting your code then post enough code so we can reproduce the issue.

• • Reply
  brucey

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  Re: Response.Redirect

  Jan 08, 2019 08:36 PM|brucey|LINK

  This is the url when the application fails

  http://localhost:56973/umbraco/Surface/RegisterNewUser/https%3a/google.com

  return RedirectToAction("https://google.com");

  
  
  

• • Reply
  mgebhard

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  Re: Response.Redirect

  Jan 08, 2019 09:15 PM|mgebhard|LINK

  brucey

  This is the url when the application fails

  http://localhost:56973/umbraco/Surface/RegisterNewUser/https%3a/google.com

  return RedirectToAction("https://google.com");

  Of course it fails and of course the Google URL is appended to the URL as that's how RedirectToAction works.

  Use...

  return Redirect("https://www.google.com");

  ...when redirecting outside the current application or to a specific URL.

  https://docs.microsoft.com/en-us/dotnet/api/system.web.mvc.controller.redirect?view=aspnet-mvc-5.2

• • Reply
  brucey

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  Re: Response.Redirect

  Jan 08, 2019 09:25 PM|brucey|LINK

  Thank you, I owe you a beer or 2 much appreciated :)