It seems to me that HMAccessoryBrowser can see not only unconfigured HomeKit accessories that are already on the same Wi-Fi network as the phone, but also WAC-enabled accessories running in setup mode, waiting to be configured (i.e. not on Wi-Fi network).
In the past I needed EAWiFiUnconfiguredAccessoryBrowser to complement HMAccessoryBrowser to see all devices (like it's done in the sample HMCatalog app), but now it seems like "external" accessories appear in HMAccessoryBrowser scan results alongside "normal" HomeKit accessories.
If tapped, I can see this dialogue:
Add Accessory to Network?
You'll need to allow this accessory to access your Wi-Fi network before you add it to Home.
[Don't Allow]-[Allow]
If I tap "Allow", the devices joins my current Wi-Fi network automatically. Which is great news, because the user doesn't need to see the ugly bland WAC dialogue created by EAWiFiUnconfiguredAccessoryBrowser.configureAccessory() call that does not fit with the rest of app look and feel.
However...
I have never seen this before, and it seems to be wildly undocumented. There are zero mentions of it in ExternalAccessory or HomeKit framework documentation, as well as no trace whatsoever of the dialogue wording anywhere.
Is it officially an officially endorsed way to configure WAC-enabled HomeKit accessories? When did it become supported? iOS 9? 10?
