$CI_PAGES_URL wrong environment url

Hello.

I’m using $CI_PAGES_URL variable in gitlab-ci.yml file to set up environment url for my pages deployment stage. It was working perfectly before, but now, it instead of setting url like this:

<name>.gitlab.io/<project_name>

It sets it to this:

<name>.example.com/<project_name>

Don’t know from where this example.com comes from.