FetchResponseData* FetchResponseData::createCORSFilteredResponse()
{
// "A CORS filtered response is a filtered response whose type is |CORS|,
// header list excludes all headers in internal response's header list,
// except those whose name is either one of `Cache-Control`,
// `Content-Language`, `Content-Type`, `Expires`, `Last-Modified`, and
// `Pragma`, and except those whose name is one of the values resulting from
// parsing `Access-Control-Expose-Headers` in internal response's header
// list."
FetchResponseData* response = new FetchResponseData(CORSType, m_status, m_statusMessage);
response->m_url = m_url;
HTTPHeaderSet accessControlExposeHeaderSet;
String accessControlExposeHeaders;
if (m_headerList->get("access-control-expose-headers", accessControlExposeHeaders))
parseAccessControlExposeHeadersAllowList(accessControlExposeHeaders, accessControlExposeHeaderSet);
for (size_t i = 0; i < m_headerList->size(); ++i) {
const FetchHeaderList::Header* header = m_headerList->list()[i].get();
if (!isOnAccessControlResponseHeaderWhitelist(header->first) && !accessControlExposeHeaderSet.contains(header->first))
continue;
response->m_headerList->append(header->first, header->second);
}
response->m_buffer = m_buffer;
response->m_mimeType = m_mimeType;
response->m_internalResponse = this;
return response;
}
FetchResponseData* FetchResponseData::createCORSFilteredResponse() const {
DCHECK_EQ(m_type, DefaultType);
HTTPHeaderSet accessControlExposeHeaderSet;
String accessControlExposeHeaders;
if (m_headerList->get(HTTPNames::Access_Control_Expose_Headers,
accessControlExposeHeaders))
parseAccessControlExposeHeadersAllowList(accessControlExposeHeaders,
accessControlExposeHeaderSet);
return createCORSFilteredResponse(accessControlExposeHeaderSet);
}