- (void)webView:(WKWebView *)webView startURLSchemeTask:(id<WKURLSchemeTask>)urlSchemeTask {
    NSLog(@"%@", urlSchemeTask.request.URL);
    __auto_type url = [self changeURLScheme:@"file" forURL:urlSchemeTask.request.URL];
    __auto_type data = [NSData dataWithContentsOfURL:url];
    [urlSchemeTask didReceiveResponse:[[NSURLResponse alloc] initWithURL:urlSchemeTask.request.URL MIMEType:FileMIMEType(url.absoluteString.lastPathComponent) expectedContentLength:data.length textEncodingName:nil]];
    [urlSchemeTask didReceiveData:data];
    [urlSchemeTask didFinish];
}