title: Protractor: get url of not angular page
body: <p>Case I try to test:
  On Angular app page press button, that redirects you to some other site (not an Angular app).</p>
  
  <pre><code>it('should go to 3d party  service when i click "auth" button' , function() {
  
      browser.driver.sleep(3000);
      element(by.id('files-services-icon')).click();
      element(by.id('box-vendor-menu-item')).click();
      browser.driver.sleep(2000);
  
      expect( browser.driver.getLocationAbsUrl()).toContain('https://app.box.com/api/oauth2/authorize');
  });
  </code></pre>
  
  <p>but I get: </p>
  
  <blockquote>
    <p>UnknownError: unknown error: angular is not defined</p>
  </blockquote>
  
  <p>How that can be achived? Thanks!</p>