Have you tried turning off the "Show Missing Keys" option in the web.config to see what shows up? 

Hi Christoc

I have been watching your videos. I found an interest thing. 

I am using DNN9 . response.redirect(EditUrl(string.emty,string,emty,"Edit",true)) cannot show up url in browser  but gloabls.NavigaeUrl can.

Also if use EditUrl still can get tid from Request.QueryString["tid"].

I know EditUrl is wrapping by javascrip:dnnModal.show(), but why in your video still can see the url in browser ?

Is there any setting different in your Dnn ?

Thanks