Diego Unanue Diego Unanue - 8 months ago 75
Javascript Question

Hash Location Strategy in Angular 2

I'm trying to create an application with hash location strategy, but it does not add the hash to the url. For instance when I click on a button associated with { path: '/polls', name: 'Polls', component: PollsComponent } it loads the page with this url : localhost:3000/polls.

What do I have to change to get the hash location strategy?
Why do I have to set the default base url if I want to use hash location strategy?

This is the routing in the app.component.ts where all the routing is defined:

import {Component} from 'angular2/core'

import {HTTP_PROVIDERS, Http} from 'angular2/http';
import 'rxjs/Rx'; // load the full rxjs
import {ROUTER_PROVIDERS, RouteConfig , ROUTER_DIRECTIVES} from 'angular2/router';

import { ResultsComponent } from './results/results.component'
import { VotingCardsComponent } from './votingcards/votingcards.component'
import { DashBoardComponent } from './dash/dash.component'
import { PollsComponent } from './pollslist/pollslist.component'

selector: 'my-app',
templateUrl: 'app/app.component.html',
directives: [ROUTER_DIRECTIVES, ResultsComponent, VotingCardsComponent, DashBoardComponent],
providers: [HTTP_PROVIDERS,


{ path: '/vote', name: 'VotePage', component: VotingCardsComponent },
{ path: '/votepoll/:id', name: 'VotePoll', component: VotingCardsComponent },
{ path: '/results', name: 'Results', component: ResultsComponent },
{ path: '/polls', name: 'Polls', component: PollsComponent },
{ path: '/', name: 'DashBoard', component: DashBoardComponent, useAsDefault: true }

export class AppComponent { }

And this is my main.ts where I configure the base url:

import {bootstrap} from 'angular2/platform/browser';
import {AppComponent} from './app.component';

//this is to avoid the href empty issue
import {provide} from 'angular2/core';
import {APP_BASE_HREF, ROUTER_PROVIDERS} from 'angular2/router';

bootstrap(AppComponent, [
//this is to avoid the href empty issue
provide(LocationStrategy, { useClass: HashLocationStrategy }),
provide(APP_BASE_HREF, { useValue: '/' })



ROUTER_PROVIDERS should not be added to child components,

only to


or alternatively only to

bootstrap(AppComponent, [ROUTER_PROVIDERS]);

HTTP_PROVIDERS are in my opinion also a better fit for root component or bootstrap() but it doesn't break anything to add them somewhere else.

(See also Routing error with angular 2 and IIS)