Yes, we were discussing the fact that the official CMA Map is no longer functional a few days ago in this topic.
It’s much more clumsy, but I am using the link below (provided a couple years ago by @Arliss) for any clients who have moved and need to verify whether they are in or out of a CMA.
I enter the Postal Code
Then under the “Census Metropolitan Area” I click on “Map” which opens up a basic map with the CMA that doesn’t really help a lot. However, from there you can click on "Archived-Reference map (Interactive Tool) " and that opens up a working zoomable version of the CMA map.
Just like the official website published by CRA but much more clumsy… but at least it still works.
Click on Census Profile to begin