Access secure website using winhttp . TLS 1.3 - c++

Question

I have the following code that works with SSL sites like microsoft.com
but not with www.dmo.gov.uk.
When I open the site using chrome I can see that it requires TLS 1.3
But when I open this side from my Android phone it falls back on using 1.2
Is there any header or another way to force website to negotiate TLS 1.2 when I access it using Winhttp.
#include <iostream>
#define WIN32_LEAN_AND_MEAN
#include <Windows.h>
#include <Winhttp.h>
#pragma comment(lib, "winhttp.lib")
static void APIENTRY StatusCallback(
HINTERNET handle,
DWORD_PTR context,
DWORD status,
LPVOID info,
DWORD size) {
handle;
DWORD err = 0;
if (status == WINHTTP_CALLBACK_STATUS_SECURE_FAILURE) {
err = *(DWORD*)info;
printf("Error flags %#010x\n", err);
}
}
int main()
{
DWORD dwSize = 0;
DWORD dwDownloaded = 0;
LPSTR pszOutBuffer;
BOOL bResults = FALSE;
HINTERNET hSession = NULL;
HINTERNET hConnect = NULL;
HINTERNET hRequest = NULL;
BOOL ret = FALSE;
hSession = WinHttpOpen(
L"WinHTTP Example/1.0",
WINHTTP_ACCESS_TYPE_DEFAULT_PROXY,
WINHTTP_NO_PROXY_NAME,
WINHTTP_NO_PROXY_BYPASS, 0);
DWORD secure_protocols =
WINHTTP_FLAG_SECURE_PROTOCOL_SSL3
| WINHTTP_FLAG_SECURE_PROTOCOL_TLS1_3;
ret = ::WinHttpSetOption(
hSession,
WINHTTP_OPTION_SECURE_PROTOCOLS,
&secure_protocols,
sizeof(secure_protocols));
WinHttpSetStatusCallback(
hSession,
StatusCallback,
WINHTTP_CALLBACK_FLAG_ALL_NOTIFICATIONS, 0);
if (hSession)
hConnect = WinHttpConnect(
hSession,
L"www.dmo.gov.uk",
// L"www.microsoft.com",
INTERNET_DEFAULT_HTTPS_PORT, 0);
if (hConnect)
hRequest = WinHttpOpenRequest(
hConnect, L"GET", NULL,
NULL, WINHTTP_NO_REFERER,
WINHTTP_DEFAULT_ACCEPT_TYPES,
WINHTTP_FLAG_SECURE);
DWORD dwFlags = SECURITY_FLAG_IGNORE_UNKNOWN_CA
| SECURITY_FLAG_IGNORE_CERT_WRONG_USAGE
| SECURITY_FLAG_IGNORE_CERT_CN_INVALID
| SECURITY_FLAG_IGNORE_CERT_DATE_INVALID;
ret = WinHttpSetOption(
hRequest,
WINHTTP_OPTION_SECURITY_FLAGS,
(void *)&dwFlags,
sizeof(dwFlags));
if (FALSE == ret) {
printf("Error %u in WinHttpSetOption.\n", GetLastError());
}
// Send a request.
if (hRequest) {
bResults = WinHttpSendRequest(
hRequest,
WINHTTP_NO_ADDITIONAL_HEADERS,
0, WINHTTP_NO_REQUEST_DATA,
0, 0, 0);
}
// End the request.
if (bResults)
bResults = WinHttpReceiveResponse(
hRequest, nullptr);
// Keep checking for data until there is nothing left.
if (bResults)
do
{
// Check for available data.
dwSize = 0;
if (!WinHttpQueryDataAvailable(hRequest, &dwSize))
printf("Error %d in WinHttpQueryDataAvailable.\n", GetLastError());
// Allocate space for the buffer.
pszOutBuffer = new char[dwSize + 1];
if (!pszOutBuffer)
{
printf("Out of memory\n");
dwSize = 0;
}
else
{
// Read the Data.
ZeroMemory(pszOutBuffer, dwSize + 1);
if (!WinHttpReadData(hRequest, (LPVOID)pszOutBuffer,
dwSize, &dwDownloaded))
printf("Error %d in WinHttpReadData.\n", GetLastError());
else
printf("%s\n", pszOutBuffer);
// Free the memory allocated to the buffer.
delete[] pszOutBuffer;
}
} while (dwSize > 0);
// Report any errors.
if (!bResults)
printf("Error %d has occurred.\n", GetLastError());
// Close any open handles.
if (hRequest) WinHttpCloseHandle(hRequest);
if (hConnect) WinHttpCloseHandle(hConnect);
if (hSession) WinHttpCloseHandle(hSession);
}