WKWebView from outer server's html5 with javascript

I can use the UIWebView to transfer WKWebView.

And then I use the web server.

So I read and action html from there.

That code is like this.

#import "ViewController.h"
/*If your header file has not UIKit.h imported */
#import 
@interface ViewController ()
@property (weak, nonatomic) IBOutlet UIWebView *webView;
@property (weak, nonatomic) IBOutlet UIButton *button1;
- (IBAction)button1:(UIButton *)sender;
@end

@imprementation ViewController

- (void)viewDidLoad{
     [super viewDidLoad];
     /*webView and replay button's left of margin, top of margin, width, height on view as set */
     _webView.frame = CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.hight-200);
     _button1.frame = CGRectMake(0, self.view.frame.size.height-200, self.view.frame.size.width, 200);
     
     /*The replay button of title and color is set */
     [_button1 setTitle:@"Replay" forState:UIControleStateNormal];
     [_button1 setTitleColor:[UIColor redColor].CGColor];
     _button1.backgroundColor = [UIColor cyanColor];
     
     /* Server's URL set */
     NSURL *url = {NSURL URLWithString:@"https://www.url.com/index.html"];
     
     /*URL load and request */
     [_webView loadRequest:[NSURLRequest requestWithURL:url]];
} 
- (IBAction)button1:(UIButton *)sender{
     NSURL *url = {NSURL URLWithString:@"https://www.url.com/index.html"];
     [_webView loadRequest:[NSURLRequest requestWithURL:url]];
}

This code is for html file to load from outer server.

Original webview has not contextmenu, So Any contents can not copy without letter.