vue-router / NavigationFailureType
NavigationFailureType 
Enumeration with all possible types for navigation failures. Can be passed to isNavigationFailure to check for specific failures.
Enumeration Members 
aborted 
ts
aborted: 4;An aborted navigation is a navigation that failed because a navigation guard returned false or called next(false)
cancelled 
ts
cancelled: 8;A cancelled navigation is a navigation that failed because a more recent navigation finished started (not necessarily finished).
duplicated 
ts
duplicated: 16;A duplicated navigation is a navigation that failed because it was initiated while already being at the exact same location.

