I can not speak English very well Thank you for your understanding
The cause is a problem that occurred while trying to use react in the WordPress admin menu.
<BrowserRouter>
<Switch>
<Route path="/wp-admin/admin.php?page=jouranl" component={list} exact />
<Route path="/wp-admin/admin.php?page=jouranl&id=1" component={detail} exact />
Is there any way to use it?
To apply to wordpress based on php, you need to use query paramter. /wp-admin/admin.php?page=journal/ <- list /wp-admin/admin.php?page=journal&id=1 <- detail
Looks like there's no way
I will ask if I can ask for advice