firebase.update issue on iOS

On my iOS simulator the application seems to always fail on the firebase update function.

updateProfile(key: string, name: string, value?: any) {
     let path = "/profiles/" + key
     return firebase.update(path, {"photoUrl": value} )
         .catch(this.handleErrors);
}

Below is the output and the node is never updated. However, on Android it goes through without issue.

Sep  1 09:28:10 Winterfell prayinghandsng[19972]: CONSOLE LOG file:///app/shared/profile/profile.service.js:27:20: updating /profiles/-KQ_vqnfRt9ahoa-WaC0
Sep  1 09:28:10 Winterfell com.apple.CoreSimulator.SimDevice.BC6BDC7A-E456-4297-B49C-4C3773FD4F46.launchd_sim[1618] (UIKitApplication:org.nativescript.prayinghands[0x2b3f][19972]): Service exited with abnormal code: 1

is there a difference in how this function should be used for iOS as oppose to Android?

[EddyVerbruggen]

OK, this should not pop up again, once released.

[dondragon2]

The value was an NSUrl coming as the result from the getDownloadUrl() function.