For now I am doing like this
NSHTTPCookie *cookie;
NSHTTPCookieStorage *storage = [NSHTTPCookieStorage sharedHTTPCookieStorage];
for (cookie in [
Swift 4 and shorter version:
let dataStore = WKWebsiteDataStore.default()
dataStore.fetchDataRecords(ofTypes: WKWebsiteDataStore.allWebsiteDataTypes()) { records in
dataStore.removeData(ofTypes: WKWebsiteDataStore.allWebsiteDataTypes(),
for: records.filter { $0.displayName.contains("facebook") },
completionHandler: completion)
}