title: Too many cookies OpenIdConnect.nonce cause error page "Bad Request - Request Too Long"
body: <p>I'm using OWIN / OAuth with OpenId Connect authentication (<code>Microsoft.Owin.Security.OpenIdConnect</code>) in a C# ASP MVC web app. The SSO login with Microsoft account basically works, but from time to time I'm getting an error page on the browser that says <code>Bad Request - Request Too Long</code>.</p>
  
  <p>I found out that this error is caused by too many cookies. Deleting cookies helps for some time, but after a while the problem comes back.</p>
  
  <p>The cookies that cause the problem are set from OpenId framework, so there are dozens of cookies with names like <code>OpenIdConnect.nonce.9oEtF53WxOi2uAw.......</code>.</p>
  
  <p>This is not SPA application, but some parts are refreshed periodically with ajax calls.</p>