POST-ing to an ASP.NET MVC form with an anti-forgery token
I've had some issues trying to write an acceptance test that was registering a new user by POST-ing the required information to a MVC site and I got back these messages: The required anti-forgery cookie "__RequestVerificationToken" is not present. The required anti-forgery form field "__RequestVerificationToken" is not present. Validation of the provided anti-forgery token failed. The cookie "_RequestVerificationToken" and the form field "_RequestVerificationToken" were swapped. Since it took me a bit of fiddling with the code before I managed to make it work, I thought I'd share the solution. The site is an ASP.NET MVC version 5 and I am trying to register a new user (POST-ing to the /Account/Register URL). The main issue you will encounter is having to extract two anti-forgery tokens, one from the cookies and one from the form, and then sending both of them in the appropriate places (cookies vs form field). I have used LinqPad 5 w