DELETE request is completing before GET request when trying to findRecord and destroyRecord in ember

I have the following code in ember 2.6; ember-data 2.6.1

import Ember from 'ember';

export default Ember.Route.extend({
    activate() {
        var route = this;
        var sessionId = localStorage.getItem('sessionId');
        if (sessionId) {
            localStorage.removeItem('sessionId');
            this.store.findRecord('session', sessionId).then(function found(session) {
                session.destroyRecord();
                route.transitionTo('index');
            });
        } else {
            this.transitionTo('sessions.new');
        }
    }
});

I have a logout button that has hbs template code as:

<li> Logout</li>

The Route.extend code is executed when /sessions/delete is called!

What I observe is the order of REST calls are:

1) ***DELETE*** http://ift.tt/2a0l9Wz;
2) ***GET*** http://ift.tt/2a0l9Wz;

The second REST request throws and error because by that time the session/cookie is already cleaned up.

What I expect is the order of the REST calls should actually be reverse but I am unable to figure out why is it not like that!

Any pointers & hints will be appreciated ;)