Currently all trusted app domains must be listed fully qualified in the manifest, e.g. <AppDomain>https://customer1.acme-eu.com</AppDomain> <AppDomain>https://customer2.acme-eu.com</AppDomain> ...
Hello, any updates on this? Is this in development pipeline? There is some solution available for supporting wildcards in Office on Windows https://learn.microsoft.com/en-us/office/dev/add-ins/develop/trusted-domains. This shouldn't be a complex addition for Office on the web. Even the Windows solution require an admin intervention which adds extra friction.