title: Sitecore WFFM forms give 'The required anti-forgery cookie "__RequestVerificationToken" is not present.' error for Chinese site only
body: <p>We are using WFFM module in sitecore for creating forms. Forms work fine in all languages except Chinese. In case of Chinese site, all WFFM forms give following error-</p>
  
  <pre><code>Message: The required anti-forgery cookie "__RequestVerificationToken" is not present.
  </code></pre>
  
  <p>Source: System.Web.WebPages
     at System.Web.Helpers.AntiXsrf.TokenValidator.ValidateTokens(HttpContextBase httpContext, IIdentity identity, AntiForgeryToken sessionToken, AntiForgeryToken fieldToken)
     at System.Web.Helpers.AntiXsrf.AntiForgeryWorker.Validate(HttpContextBase httpContext)
     at Sitecore.Forms.Mvc.Controllers.Filters.WffmValidateAntiForgeryTokenAttribute.OnAuthorization(AuthorizationContext filterContext)
     at System.Web.Mvc.ControllerActionInvoker.InvokeAuthorizationFilters(ControllerContext controllerContext, IList`1 filters, ActionDescriptor actionDescriptor)
     at System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName)</p>
  
  <p><code>Web Forms for Marketers: an exception 'The required anti-forgery cookie "__RequestVerificationToken" is not present.' has occured while trying to execute an action ''</code></p>
  
  <p>How do we fix it? Any help is appreciated.</p>