"See [argoproj#1482](https://github.com/argoproj/argo-cd/is..." to fa…

…q.md

docs/faq.md

@@ -91,4 +91,17 @@ Argo CD automatically sets the `app.kubernetes.io/instance` label and uses it to
 
 !!! note    When you make this change your applications will become out of sync and will need re-syncing.
 
-See [#1482](https://github.com/argoproj/argo-cd/issues/1482).
+See [#1482](https://github.com/argoproj/argo-cd/issues/1482).
+
+
+# How Do I Fix "invalid cookie, longer than max length 4093"?
+
+Argo CD uses a JWT as the auth token. You likely are part of many groups and have gone over the 4KB limit which is set for cookies.
+You can get the list of groups by opening "developer tools -> network"
+
+* Click log in
+* Find the call to `<argocd_instance>/auth/callback?code=<random_string>`
+
+Decode the token at https://jwt.io/. That will provide the list of teams that you can remove yourself from.
+
+See [#2165](https://github.com/argoproj/argo-cd/issues/2165).