Objective c webview未加载图像

我正在使用uiwebview在ipad上显示网页。 我使用以下代码：-

    [[self request] setDelegate:nil];    
    [[self request] cancel];    
    [self setRequest:[ASIWebPageRequest requestWithURL:navigationURL]];    
    [[self request] setDelegate:self];   
    [[self request] setDidFailSelector:@selector(webPageFetchFailed:)];   
    [[self request] setDidFinishSelector:@selector(webPageFetchSucceeded:)];
    [[self request] setShouldPresentProxyAuthenticationDialog:YES];
    [[self request] setShouldPresentCredentialsBeforeChallenge:YES];
    [[self request] setShouldPresentAuthenticationDialog:YES];

    // Tell the request to embed external resources directly in the page    
    [[self request] setUrlReplacementMode:ASIReplaceExternalResourcesWithData];     
    // It is strongly recommended you use a download cache with ASIWebPageRequest   
    // When using a cache, external resources are automatically stored in the cache    
    // and can be pulled from the cache on subsequent page loads    
    [[self request] setDownloadCache:[ASIDownloadCache sharedCache]];     
    // Ask the download cache for a place to store the cached data    
    // This is the most efficient way for an ASIWebPageRequest to store a web page    
    [[self request] setDownloadDestinationPath:       
     [[ASIDownloadCache sharedCache] pathToStoreCachedResponseDataForRequest:[self request]]];   
    [[self request] startAsynchronous];

导航url从用户输入url的一个屏幕获取值

在这之后呢

- (void)webPageFetchSucceeded:(ASIHTTPRequest *)theRequest 
{    NSString *response = [NSString stringWithContentsOfFile:       
       [theRequest downloadDestinationPath] encoding:[theRequest responseEncoding] error:nil];    
    // Note we're setting the baseURL to the url of the page we downloaded. 
    //This is important!    
    [web loadHTMLString:response baseURL:navigationURL];
    //[web loadRequest:[NSURLRequest requestWithURL:[NSURL fileURLWithPath:[theRequest downloadDestinationPath]]]];

} 

这工作正常，但我目前只面临一个问题。当我尝试打开其中一个包含图像和一些动画的链接时，动画工作正常，但在webview中没有显示任何图像。我只看到为图像分配的矩形框。在safari浏览器上，同一个链接对所有动画和图像都工作正常。

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如何克服这个问题。

导航URL是否包含index.html或其他内容？如果是这样，您需要剪切该链接…链接的最后一部分是“/start.htm”…我是否也应该删除该链接？是的，据我所知（这是我使用它的方式…）基本URL应该是文件所在的目录，不是文件本身。它直接从服务器获取图像..如果我删除结束部分，它会引发异常，并且不会显示任何内容任何人对此有任何想法..图像在safari浏览器中可见，但在我的webview中不可见：(