How to properly remove an instance of UIWebView and avoid memory leaks

DestroyWebview.m

// Destroy UIWebView
- (void)destroyWebView
{
    [self.webView loadHTMLString:@"" baseURL:nil];
    [self.webView stopLoading];
    [self.webView setDelegate:nil];
    [self.webView removeFromSuperview];
    [self setWebView:nil];
    
    [[NSURLCache sharedURLCache] removeAllCachedResponses];
    [[NSURLCache sharedURLCache] setDiskCapacity:0];
    [[NSURLCache sharedURLCache] setMemoryCapacity:0];
}

// UIWebViewDelegate Methods
- (void) webViewDidFinishLoad:(UIWebView *)webView
{
    [[NSUserDefaults standardUserDefaults] setInteger:0 forKey:@"WebKitCacheModelPreferenceKey"];
}

- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
{
    return YES;
}

Is it still the case ?
Why do you use webView:shouldStartLoadWithRequest:navigationType: ?

It does not work very well.

Not work for me.

I have no idea if this works anymore. I put this solution together in early 2013, from a project I worked on in 2012.