Main page reloaded multiple times

[Palollo]

When the main page is refreshed in the browser, the list of datasets is reloaded three times!

The first time as an unauthenticated user, so only the public datasets are shown.
The second time the auth-token is requested previously to the auth-service and then the normal request to the backend with the auth-token is sent to get all the datasets.
And finally both requests to the auth-service (for the token) and to the backend are repeated exactly the same one time more.

The problem with the third time can be due to the same reason as in the issue #177 .
The first time is not needed.