fix `Tests sometimes (frequently) lose connection` (for Linux) (close  #1647) (#1768)
fix `Tests sometimes (frequently) lose connection` (for Linux) (close  #1647) (#1768)

* fix `Tests sometimes (frequently) lose connection` (for Linux) (close #1647)

* fix remark

* fix remark

miherlosev/testcafe-hammerhead,DevExpress/testcafe-hammerhead,miherlosev/testcafe-hammerhead,LavrovArtem/testcafe-hammerhead,LavrovArtem/testcafe-hammerhead,miherlosev/testcafe-hammerhead,DevExpress/testcafe-hammerhead,miherlosev/testcafe-hammerhead,LavrovArtem/testcafe-hammerhead,DevExpress/testcafe-hammerhead,LavrovArtem/testcafe-hammerhead,DevExpress/testcafe-hammerhead