Get locations for API work incorrectly

Hi Team!
I use your REST API for site testing (throw own chrome extension) and I am trying to get list of locations but some locations don’t work, for example I use:


And I get error. But this location works fine when I run test from your site. Where is my mistake? How can I get actual list of locations?

Try instead. Not all of the locations are available for testing through the API. Adding k=A to the query will restrict the list to those that are available through the API.