Poner una imagen de fondo al webview en Apache Cordova

// http://blogsiglo.com/archivo/1951.imagen-de-fondo-en-aplicacion-phonegap-ios-desde-internet-webview-apachecordova.html
#pragma mark UIWebDelegate implementation

- (void)webViewDidFinishLoad:(UIWebView*)theWebView
{
    theWebView.opaque = NO; // @ToRo
    UIGraphicsBeginImageContext(self.view.frame.size);
    //estática
    //[[UIImage imageNamed:@"bgs.png"] drawInRect:self.view.bounds];
    //internet
    NSURL* url = [NSURL URLWithString:@"https://www.elsiglodetorreon.com.mx/new/bgs.png"];
    NSData* data = [NSData dataWithContentsOfURL:url];
    UIImage* img = [UIImage imageWithData:data];
    [img drawInRect:self.view.bounds];
    //fin internet
    UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();

    // Black base color for background matches the native apps
    theWebView.backgroundColor = [UIColor whiteColor];
    theWebView.backgroundColor = [UIColor colorWithPatternImage: image];

    return [super webViewDidFinishLoad:theWebView];
}

/* Comment out the block below to over-ride */