Exceptionless Ignore 404 from non users

Ignore404sFromNonUsers.cs

ExceptionlessClient.Default.Configuration.AddPlugin<Ignore404sFromNonUsers>();

[Priority(100)]
public class Ignore404sFromNonUsers : IEventPlugin {
    public void Run(EventPluginContext ctx) {
        if (!String.Equals(ctx.Event.Type, Event.KnownTypes.NotFound))
            return;

        // Ignore any 404 that doesn't have user info.
        ctx.Cancel = !ctx.Event.Data.ContainsKey(Event.KnownDataKeys.UserInfo);
    }
}