private static IDownload FetchFromDifferentOriginAsync(this IResourceLoader loader, CorsRequest cors)
{
var request = cors.Request;
request.IsCredentialOmitted = cors.IsAnonymous();
var download = loader.FetchAsync(request);
return(download.Wrap(response =>
{
if (response?.StatusCode != HttpStatusCode.OK)
{
response?.Dispose();
throw new DomException(DomError.Network);
}
return cors.CheckIntegrity(download);
}));
}
private static IDownload FetchFromSameOriginAsync(this IResourceLoader loader, Url url, CorsRequest cors)
{
var request = cors.Request;
var download = loader.FetchAsync(new ResourceRequest(request.Source, url)
{
Origin = request.Origin,
IsManualRedirectDesired = true
});
return(download.Wrap(response =>
{
if (response.IsRedirected())
{
url.Href = response.Headers.GetOrDefault(HeaderNames.Location, url.Href);
return request.Origin.Is(url.Origin) ?
loader.FetchWithCorsAsync(cors.RedirectTo(url)) :
loader.FetchFromSameOriginAsync(url, cors);
}
return cors.CheckIntegrity(download);
}));
}