add hashRouterMode

[tennox]

Partially addresses #971 problem (the part where it's about hashRouter problems):

const manager = new UserManager({
  response_mode: 'query',
  hashRouterMode: true,
  //...
})

[tennox]

I've just been made aware of this other issue
#734 (comment)

And how it's a bug in the IdentityProvider, appending the queryString after the hash part.

So should I cancel this PR?

[pamapa]

So should I cancel this PR?

yes, also see my comment in #971.

[tennox]

Got it, closing in favor of pulsejet/nextcloud-oidc-login#251

Thanks :)

[pamapa]

@tennox I guess it would very worth to add something to the documentation. You could add a "Angular" hash mode section in https://github.com/authts/oidc-client-ts/blob/main/docs/index.md. That would be awesome.

[arnaudrolly]

#1275 (the doc) seems to have been merged, but not #1270 (the functionality) ?

[tennox]

#1275 (the doc) seems to have been merged, but not #1270 (the functionality) ?

This PR was an attempt at fixing a problem which is not actually real.
Afaik, the behaviour of this lib is correct, and the IdentityProviders I had been using have a bug of putting the query string in the wrong part of the URL.