Returns a promise for a History API implementation, or rejects if unavailable.
The property is optional to support explicitly older servers that do not have a history api provider.
When called without arguments, returns a proxy to the default provider.
When called with a provider id, returns that specific provider's HistoryApi instance.
Returns a promise for a History API implementation, or rejects if unavailable. The property is optional to support explicitly older servers that do not have a history api provider.
When called without arguments, returns a proxy to the default provider. When called with a provider id, returns that specific provider's HistoryApi instance.