Any way to make vue-fire work with Ionic ?

[mrleblanc101]

Currently, my app run in the browser.
I recently tried to port it to Ionic to make a native iOS/Android version.
Ionic has a dev mode in the browser, and I've been able to make everything work.
When I finally try to launch the app in the iOS Simulator, I get this error:

TypeError: undefined is not an object (evaluating 'gapi.iframes.getContext')

There are some discussion around this on the web, this is because Firebase modular SDK doesn't directly support Capacitor, only Cordova. See this issue: firebase/firebase-js-sdk#5019

Some propose using getAuth directly but in VueFire we load a VueFireAuth as a module instead so I'm not sure how I could use this.
https://harryherskowitz.com/2021/08/23/firebase-capacitor.html

There seem to be a lot of discussion around the same issue in the AngularFire repo angular/angularfire#3087, someone say that add iosScheme: "ionic" to capacitor.config.ts should make Firebase think it's running on Cordova and fix the issue, but I was not able to make it work.