Hi,

It's not specifically a Ruby thing, but a Rails4 Turbolinks one.

Since turbolinks does not do real page reloads, it triggers events like
page:fetch, page:load, page:change, etc.  But I can't find one, that
is capable of interrupting the click.  I'm looking for something that is
a BeforeUnLoad event in normal cases.  Does someone know if there
is such one?  page:fetch seemd to me the one, but capturing it and
returning false does not stop the event.