I am developing multilingual site in Drupal 8. I added content in Turkish language and did not create any translation for that node.
Suppose node ID is 123, so system URL is http://example.com/tr/node/123. I have managed to redirect the system URL to its alias. So when I go to https://example.com/tr/node/123 I am successfully redirected to https://example.com/tr/custom-node-in-turkish which is perfect.
The problem now is, when I go to https://example.com/node/123 (without
tr) or add another language http://example.com/ar/node/123 (
ar = Arabic) then I want to redirect the user to the 404 page as these are not the original content.
How can I achieve that in Drupal 8?