Azure Static Web Apps Dynamic Staging urls issue

Azure Static Web Apps generate staging urls for each Pull Request to allow preview changes before going to production. Unfortunately, they dynamically generate the subdomain for each one.
https://salmon-grass-02b61a410-2.centralus.2.azurestaticapps.net/ (this is just a test so no worries sharing full url). I tried this in the callback urls
https://salmon-grass-*.azurestaticapps.net/ but it doesn’t work. Any workarounds?