Cordova linkedin does not respond any thing back

ionic-v1
1

I have installed the plugin and configured it in the linkedin website

lk%20pg
lk pg.png580×518 15.5 KB 

scopes: LinkedInLoginScopes[] = ['r_basicprofile', 'r_emailaddress', 'rw_company_admin', 'w_share'];
linkedinLogin() : void {
    this.linkedin.login(this.scopes, true)
      .then(() => {
        // get connections
        this.linkedin.getRequest('people/~:(id,email-address,firstName,lastName,headline,pictureUrl,public-profile-url,positions:(is-current,company:(name)))?format=json')
        .then(profile => {
          alert(JSON.stringify(profile));
          this.userData = {
            username: profile['headline'],
            picture: '', 
            email: '', 
            first_name: profile['firstName'], 
            last_name: profile['lastName'],
            perfil: profile['siteStandardProfileRequest']['url']
          }
        }).catch(e => alert('Erro get connections: ' + e));
      }).catch(e => alert('Erro Login' + e));
  }

when I click on the button(linkedinLogin()) I don’t get any response nor it does through any error. just no action takes place.