Turbolinks.enableProgressBar() returns undefined

[NeoElit]

I'm experiencing a weird 'undefined' return value from Turbolinks.enableProgressBar(); in case when
server renders page without redirection in response to a post request.
Any work around for this issue?

Steps to replicate:

1. Post a form
2. Render action (without redirection; common for a case of form validation error)
3. In JS console try Turbolinks.enableProgressBar();

You'll see undefined

Rails: 4.2.6
Turbolinks: 2.5.3