Questione giuridica chiave
Whether the request that the father advance litigation costs in the federal proceedings was admissible
Decisione estratta
The request could not be raised in the federal appeal as a request for interim relief; any advance-cost claim had to be asserted in the competent cantonal proceedings.
Motivazione estratta
The cost-advance claim is a substantive family-law support claim and is not part of the federal appeal's subject matter.