Postcodes.io does indeed permit cross origin requests from `"*"` (#862)

README.md

@@ -425,7 +425,7 @@ API | Description | Auth | HTTPS | CORS |
 | [OpenCage](https://geocoder.opencagedata.com) | Forward and reverse geocoding using open data | No | Yes | Unknown |
 | [OpenStreetMap](http://wiki.openstreetmap.org/wiki/API) | Navigation, geolocation and geographical data | `OAuth` | No | Unknown |
 | [PostcodeData.nl](http://api.postcodedata.nl/v1/postcode/?postcode=1211EP&streetnumber=60&ref=domeinnaam.nl&type=json) | Provide geolocation data based on postcode for Dutch addresses | No | No | Unknown |
-| [Postcodes.io](https://postcodes.io) | Postcode lookup & Geolocation for the UK | No | Yes | Unknown |
+| [Postcodes.io](https://postcodes.io) | Postcode lookup & Geolocation for the UK | No | Yes | Yes |
 | [REST Countries](https://restcountries.eu) | Get information about countries via a RESTful API | No | Yes | Unknown |
 | [Uebermaps](https://uebermaps.com/api/v2) | Discover and share maps with friends | `apiKey` | Yes | Unknown |
 | [Utah AGRC](https://api.mapserv.utah.gov) | Utah Web API for geocoding Utah addresses | `apiKey` | Yes | Unknown |