Open WebView need Authentication

//
//  ViewController.m
//  OpenWebViewNeedAuthentication
//
//  Created by Thieu Mao on 3/10/17.
//  Copyright © 2017 thieumao. All rights reserved.
//

#import "ViewController.h"

@interface ViewController ()
@property (weak, nonatomic) IBOutlet UIWebView *webView;
@property (strong, nonatomic) NSMutableURLRequest *request;
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    NSURL *url = [NSURL URLWithString:@"http://42.119.128.237/"];
    self.request = [NSMutableURLRequest requestWithURL:url
        cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:12];
    [self.webView loadRequest:self.request];
    [NSURLConnection connectionWithRequest:self.request delegate:self];
}

- (void)connection:(NSURLConnection *)connection
    didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge {
    NSURLCredential *credential = [NSURLCredential credentialWithUser:@"admin" password:@"test"
        persistence:NSURLCredentialPersistenceForSession];
    [[NSURLCredentialStorage sharedCredentialStorage]setCredential:credential
        forProtectionSpace:[challenge protectionSpace]];
    [self.webView loadRequest:self.request];
}

@end