Like, it might be if you had two news URL's and this was the second one, but even then you could be more specific.
However here, it's not even a second URL it's another part of the URL. Better practice might be to have baseURL, APIKeyURL, showFieldsURL as three parts of the URL
https://github.com/facn2/knafeh/blob/master/scripts/global.js#L3
Like, it might be if you had two news URL's and this was the second one, but even then you could be more specific.
However here, it's not even a second URL it's another part of the URL. Better practice might be to have
baseURL, APIKeyURL, showFieldsURLas three parts of the URL