MVC controller is being called twice

Question

I have a controller that is being called twice from an ActionLink call.

My home page has a link, that when clicked calls the Index method on the Play controller. An

Answer 1

In my case it was incorrectly configured remote script Yandex.metrika (Google analytics analog). This script was presented on each page, so any controller and any action was called twice. Check your Ya.metrika settings for more details.