Revert "changeTitle"

This reverts commit 2713687fd5eeedf23ddfd44cf5f09e690420808b.
Revert "Revert "changeTitle""

This reverts commit c9d6af41f375c33ffa1c26af0cd896808a93bdff.
Revert "Revert "Revert "changeTitle"""

This reverts commit 7262f0d50d8f8b65e08fc14ed594fe12828def06.
Revert "Revert "Revert "Revert "changeTitle""""

This reverts commit 2cbd5991c0293ea59be3a3e186d31e1082c6f87b.
js delete