The exercise keeps telling me to check the diagram in the browser. I assume that the browser is the small tab on the right hand side. There is almost always nothing there and if I refresh then it comes with some sort of error. Should there be a diagram anywhere?
@pymaster53339 - I had the same issue. I could not get it to display. It appears to be a bug, so I copied and pasted the link inside another tab of chrome to see the diagram. Here is the diagram for Standard Controller Actions - https://www.codecademy.com/articles/standard-controller-actions