Http error 301 when reading website with asio/boost - c++

Question

I would like to get the source html code of a website in C++.
I tried with libcurl and curlpp but I don't succeed to link and build the libs...
So, I found a sample code in the boost website for reading websites.
I tried, but I have the 301 error code (Moved Permanently).
If I go on my website ( https://www.fdj.fr/jeux/jeux-de-tirage/keno/resultats ) I have no problem, and the website appear to be OK.
Anyone have some ideas ?
Here is my code:
std::string strHost= "fdj.fr";
std::string strUrlPath = "https://www.fdj.fr/jeux/jeux-de-tirage/keno/resultats";
try
{
using boost::asio::ip::tcp;
boost::asio::io_service io_service;
// Get a list of endpoints corresponding to the server name.
tcp::resolver resolver(io_service);
tcp::resolver::query query(strHost, "http");
tcp::resolver::iterator endpoint_iterator = resolver.resolve(query);
tcp::resolver::iterator end;
// Try each endpoint until we successfully establish a connection.
tcp::socket socket(io_service);
boost::system::error_code error = boost::asio::error::host_not_found;
while (error && endpoint_iterator != end)
{
socket.close();
socket.connect(*endpoint_iterator++, error);
}
if (error)
throw boost::system::system_error(error);
// Form the request. We specify the "Connection: close" header so that the
// server will close the socket after transmitting the response. This will
// allow us to treat all data up until the EOF as the content.
boost::asio::streambuf request;
std::ostream request_stream(&request);
request_stream << "GET " << strUrlPath << " HTTP/1.0\r\n";
request_stream << "Host: " << strHost << "\r\n";
request_stream << "Accept: */*\r\n";
request_stream << "Connection: close\r\n\r\n";
// Send the request.
boost::asio::write(socket, request);
// Read the response status line.
boost::asio::streambuf response;
boost::asio::read_until(socket, response, "\r\n");
// Check that response is OK.
std::istream response_stream(&response);
std::string http_version;
response_stream >> http_version;
unsigned int status_code;
response_stream >> status_code;
std::string status_message;
std::getline(response_stream, status_message);
if (!response_stream || http_version.substr(0, 5) != "HTTP/")
{
std::cout << "Invalid response\n";
//return 1;
}
if (status_code != 200)
{
std::cout << "Response returned with status code " << status_code << "\n";
//return 1;
}
// Read the response headers, which are terminated by a blank line.
boost::asio::read_until(socket, response, "\r\n\r\n");
// Process the response headers.
std::string header;
while (std::getline(response_stream, header) && header != "\r")
std::cout << header << "\n";
std::cout << "\n";
// Write whatever content we already have to output.
if (response.size() > 0)
std::cout << &response;
// Read until EOF, writing data to output as we go.
while (boost::asio::read(socket, response,
boost::asio::transfer_at_least(1), error))
std::cout << &response;
if (error != boost::asio::error::eof)
throw boost::system::system_error(error);
}
catch (std::exception& e)
{
std::cout << "Exception: " << e.what() << "\n";
}