Http/2 server_push with NSURLSession

Question

I have implemented a program to communicate http2 using NSURLSession of iOS9, And it can communicate with my server in http2. However, I'm having a problem with receive server_push. I found ENABLE_PUSH value is 0 in their settings and there's no delegate in receive server push in NSURLSession...

・I think NSURLSession doesn't support server_push. Is this right?

・If it support server_push,how to use?

/**
It WORKS for post data and get response.
I don't know the code should be added here 
in order to get the server_push.
I suspect that NSURLSession itself cannot receive the server_push(;_;)
**/
- (void) postData
{
     NSString *urlstr = self.urlArea.text;
     NSURL * url = [NSURL URLWithString:urlstr];
     NSDictionary *params = @{@"data":@""};
    //json to query
    NSData *query = [self buildQueryWithDictionary: params];

    //make request
    NSMutableURLRequest *request = [NSMutableURLRequest
                                requestWithURL:url
                                cachePolicy: NSURLRequestReloadIgnoringCacheData
                                timeoutInterval: 10.0];
    [request setHTTPMethod: @"POST"];
    [request setHTTPBody: query];

    //prepare session
    NSURLSession *session = [NSURLSession sessionWithConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration] delegate:self delegateQueue:[NSOperationQueue mainQueue]];

    //resume
     [[session dataTaskWithRequest: request  completionHandler:^(NSData *data, NSURLResponse *response, NSError *error)
    {
        if (response && ! error) {
             NSLog(@"Data: %@", [[NSString alloc] initWithData: data  encoding: NSUTF8StringEncoding]);
        }else {
            NSLog(@"ERR: %@", error);
        }
    }] resume];
}

Answer 1

Solved

I received following reply from support.

iOS does not currently support this.

---

update

(@vin25 comment)

ios10 supports it.