Teams context on iOS has invalid teamsSiteUrl with 2024-MarT2 update

[nbelyh]

The problem started with Teams 2024 March T2 update.
On iOS, now it turned out to be NOT THE TEAMS SITE URL passed in context, but a URL to a web page on the root site.

Was (correct, also correct on all other Teams client versions, i.e. Android/Desktop/Web):
https://something.sharepoint.com/sites/TeamSite

Now (iOS, after March 2024 update):
https://something.sharepoint.com/_layout/15/sharepoint.aspx

This is causing a problem in our application, because it assumes that teamsSiteUrl contains a URL of teams site, not a page.
Would appreciate some ideas for workarounds (how do I get the team site).

In the documentation, it is also stated that the old way is correct:
https://learn.microsoft.com/en-us/javascript/api/@microsoft/teams-js/microsoftteams.context?view=msteams-client-js-1.13.1#@microsoft-teams-js-microsoftteams-context-teamsiteurl

This property should not be some a page on a root site, this should be a team site url.

[Prasad-MSFT]

@nbelyh - Thanks for raising your issue. We will check this at our end and will update you accordingly.

[Prasad-MSFT]

@nbelyh - Just to be sure, are you testing using @microsoft/teams-js": "^1.13.1 or Teams JSv2?

In Teams JSv2 it is referred as sharepointSite.url

[nbelyh]

@Prasad-MSFT
1.13.1 (our app is still on 1.x branch). But I don't think there is difference, as it's only on iOS.

As a temporary workaround, we used this:

    if (context.teamSiteUrl.endsWith('.aspx')) {
      const origin = UrlService.getOrigin(siteUrl);
      const teamSite = context.channelRelativeUrl.split('/').slice(0, 3).join('/');
      siteUrl = `${origin}${teamSite}`
    }

[Prasad-MSFT]

@nbelyh - We have raised a bug for the same. We will inform you once we get any further update from engineering team.

Thanks!