Still debugging things on Edge, with fluent-dom, this.bundles is empty in Localization (from DomLocalization).
As my generateBundles return a simple iterator, not an async iterator, I tried changing CachedAsyncIterable to CachedSyncIterable and it worked.
I guess CachedAsyncIterable is supposed to work too as it works in other browsers and I'd like to avoid keeping a copy of DomLocalization & Localization with this patch in my project.
so if anyone knows how to test / debug this on Edge that would be great because I can't figure out where is the problem :)