Visibly layers can be passed in URL's. This can be useful if you want to share a certain view with someone else that differs from the default view.
The link structure is:
[Domain] / [Project Name] /?layers=[Layer Names]
e.g. http://localhost/Test/?layers=employees,desks,assets,it
Other URL Parameters can also be included in the link:
e.g. http://localhost/Test/?layers=employees,desks,assets,it#emp_201506010622118935
Use ?layers=default to show the default visible layers.