为什么有些Https url在WebView中不加载？

Question

为什么有些https链接不加载WebView。我可以看到一些https url在safari浏览器中加载完美，但是当我尝试在webview中加载相同的url时，它不会加载。可能是因为https有自签名证书？我们不能加载具有自签名证书的WebView中的url吗？

编辑： 现在我能够调用

- (BOOL)connection:(NSURLConnection *)connection canAuthenticateAgainstProtectionSpace:(NSURLProtectionSpace *)protectionSpace 
{ 
    return YES; 
} 

- (void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge 
{ 
    [challenge.sender useCredential:[NSURLCredential credentialForTrust:challenge.protectionSpace.serverTrust] forAuthenticationChallenge:challenge]; 
} 

不过我HTTPS URL中的WebView没有加载。

Answer 1

试试这个：

- (BOOL)connection:(NSURLConnection *)connection canAuthenticateAgainstProtectionSpace:(NSURLProtectionSpace *)protectionSpace 
{ 
    return YES; 
} 

- (void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge { 
NSArray *trustedHosts = [NSArray arrayWithObjects:@"mytrustedhost",nil]; 

if ([challenge.protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodServerTrust]){ 
    if ([trustedHosts containsObject:challenge.protectionSpace.host]) { 
    [challenge.sender useCredential:[NSURLCredential credentialForTrust:challenge.protectionSpace.serverTrust] forAuthenticationChallenge:challenge]; 
    } 
} 
[challenge.sender continueWithoutCredentialForAuthenticationChallenge:challenge]; 
}