sf::Http::sendRequest never returns - c++

Question

I've written a simple web service using pistache. I'm seding requests to it using sf::Http and sf::Http::Request classes. However, call of sf::Http::sendRequest never returns, even though I specified a 250 ms timeout. The thing happens only with requests to my website. If I send GET request to www.google.com the method returns correct response quite quickly.
Here's the client-side code sample:
sf::Http http("http://192.168.1.10", 8080);
sf::Http::Request request("/highscores", sf::Http::Request::Method::Get);
request.setHttpVersion(1, 1);
//the call below never returns
auto response = http.sendRequest(request, sf::seconds(0.25f));
std::cout << response.getBody();
The service response seems correct in browser and in curl:
$ curl -v 192.168.1.10:8080/highscores
* Trying 192.168.1.10...
* Connected to 192.168.1.10 (192.168.1.10) port 8080 (#0)
> GET /highscores HTTP/1.1
> Host: 192.168.1.10:8080
> User-Agent: curl/7.47.1
> Accept: */*
>
< HTTP/1.1 200 OK
< Content-Type: application/json
< Connection: Keep-Alive
< Content-Length: 2
<
* Connection #0 to host 192.168.1.10 left intact
[]%
Using strace on my application shows that it sends correct request and even at some point it receives the correct response:
$ strace -s 192 ./sfmlApplication
...
sendto(20, "GET /highscores HTTP/1.1\r\nconnection: close\r\ncontent-length: 0\r\ncontent-type: application/json\r\nfrom: user#sfml-dev.org\r\nhost: 192.168.1.10\r\nuser-agent: libsfml-network/2.x\r\n\r\n", 176, MSG_NOSIGNAL, NULL, 0) = 176
recvfrom(20, "HTTP/1.1 200 OK\r\nContent-Type: application/json\r\nConnection: Keep-Alive\r\nContent-Length: 2\r\n\r\n[]", 1024, MSG_NOSIGNAL, NULL, NULL) = 96
recvfrom(20,
These are the last lines from strace output, after recvfrom(20, the program stops responding and has to be killed.
And the top of stack trace of blocked operation is:
recv() at 0x7ffff7bcd10f
sf::TcpSocket::receive() at 0x7ffff77b12c0
sf::Http::sendRequest() at 0x7ffff77ad5ed
SFML Version: 2.3.2
System: Fedora 4.8.4-200.fc24.x86_64
Any ideas why the sf::Http::sendRequest method call never returns?