n a model promise fulfills, but what if it rejects?</p>
<p>By default, if a model promise rejects during a transition, the transition is
aborted, no new destination route templates are rendered, and an error
is logged to the console.</p>
<p>You can configure this error-handling logic via the <code>error</code> handler on
the route's <code>actions</code> hash. When a promise rejects, an <code>error</code> event
will be fired on that route and bubble up to <code>route:application</code>'s
default error handle