title: Continue to show angular default loading until angular2 router is resolved?
body: <p>Angular2 cli provide default loading until it get bootstrapped <code>&lt;app-root&gt;Loading...&lt;/app-root&gt;</code>. 
  Then angular2 route resolver initiate API call to check weather user is authenticated or not after that it goes to desired route.</p>
  
  <p>But in between this process I can see blank screen.
  Actually angular default <strong>Loading...</strong> is removed and resolver is taking some time to get resolved.</p>
  
  <p>So is there anyway to continue showing angular default loading symbol until router is resolved.</p>