For now I am doing like this
NSHTTPCookie *cookie;
NSHTTPCookieStorage *storage = [NSHTTPCookieStorage sharedHTTPCookieStorage];
for (cookie in [
Esqarrouth's answer is only partially right.
The correct swift version is:
var libraryPath : String = NSFileManager().URLsForDirectory(.LibraryDirectory, inDomains: .UserDomainMask).first!.path!
libraryPath += "/Cookies"
do {
try NSFileManager.defaultManager().removeItemAtPath(libraryPath)
} catch {
print("error")
}
NSURLCache.sharedURLCache().removeAllCachedResponses()