Cookie is not created

Question

Hi, I'm trying to create a cookie and it's not working. This is what I do:

NSDictionary *properties = [NSDictionary dictionaryWithObjectsAndKeys:
    @".myurl.com", NSHTTPCookieOriginURL,  
    @"\\", NSHTTPCookiePath,  
    @"myCookieName", NSHTTPCookieName,    

@"ABC", NSHTTPCookieValue,

    nil];  
NSHTTPCookie *cookie = [NSHTTPCookie cookieWithProperties:properties];

So far it works perfectly. BUT - when I replace the cookie value (bold line) with

self._myNSStringProperty, NSHTTPCookieValue,

it simply doesn't work. The cookie isn't created. I've checked it a hundret times now. My NSString property is filled.

Any ideas what's going wrong here?

Thanks for help.