Re: Why does NSURLSession return NSURLResponse instead of NSHTTPURLResponse
Re: Why does NSURLSession return NSURLResponse instead of NSHTTPURLResponse
- Subject: Re: Why does NSURLSession return NSURLResponse instead of NSHTTPURLResponse
- From: Jens Alfke <email@hidden>
- Date: Tue, 17 Oct 2017 22:18:01 -0700
> On Oct 17, 2017, at 5:06 PM, email@hidden wrote:
>
> Isn’t NSHTTPURLResponse a subclass of NSURLResponse?
Yes it is, but calling `((NSHTTPURLResponse*)response).statusCode` will still
throw an exception if the response isn’t actually an instance of the subclass,
because the base class doesn’t implement that property.
—Jens
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