The following crash happens during enterprise enrollment and also when on sign-on screen.

[1:1:0920/125654.735772:FATAL:api_response_validator.cc(75)] Check failed: false. Error validating response to networkingPrivate.getNetworks: Error at parameter 'result': Error at index 8: Error at property 'WiFi': Unexpected property: 'EAP'.

The relevant JSON failing the check is
{
   "Connectable": false,
   "ConnectionState": "NotConnected",
   "GUID": "{3e5dc63d-06e3-40d6-a78f-b20bc52a2c7b}",
   "Name": "hendrich_PEAP_test",
   "Priority": 0,
   "Source": "DevicePolicy",
   "Type": "WiFi",
   "WiFi": {
      "BSSID": "",
      "EAP": {
         "Outer": "PEAP"
      },
      "Frequency": 0,
      "HexSSID": "68656E64726963685F504541505F74657374",
      "SSID": "hendrich_PEAP_test",
      "Security": "WPA-EAP",
      "SignalStrength": 1,
      "TetheringState": ""
   }
}

getNetworks returns NetworkStateProperties[], which has a WifiStateProperties, which does not have an EAP property

network->GetStateProperties() is returning a dict with "EAP.EAP" https://cs.chromium.org/chromium/src/chromeos/network/network_state.cc?l=296&rcl=144854454b206cbe9c191e51b905c1d6bf01e72e

To fix, from stevenjb@,

  OK. We just need to include EAP.Outer in the IDL signature, i.e.:
    dictionary EAPStateProperties {
      DOMString? Outer;
  }
  Then add to WiFiStateProperties:
  EAPStateProperties? EAP;