iOS UIWebView错误信息： frame load interrupt

一般来说是URL中少了http://或https://

示例：

- (BOOL)webView:(UIWebView *)theWebView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
{
   // Intercept the external http requests and forward to Safari.app
    // Otherwise forward to the PhoneGap WebView
    if ([[url scheme] isEqualToString:@"http"] || [[url scheme] isEqualToString:@"https"]) {
        [[UIApplication sharedApplication] openURL:url];
        return NO;
    }
    else {
        return [ super webView:theWebView shouldStartLoadWithRequest:request navigationType:navigationType ];
    }
}

if ([url.scheme isEqualToString:@"file"]) {
    NSLog(@"Open start page");
    [[UIApplication sharedApplication] openURL:url];
    return NO;
}