mDNS through the constructor parameter doesn't work

[bwucke]

I tried some debugging but found nothing - what you do in your code, other than reversed logic for the error message which should do nothing, is exactly what I'm doing. But mine works, yours doesn't. ¯\_(ツ)_/¯

void startWWWServer() {

    const char* host = "switch";
    //     LOG_F(("Setting mDNS hostname http://%s.local/\n",host));
    server = new AsyncFsWebServer(80, LittleFS, host);

    server->on("/", HTTP_GET, index_handler);
    server->on("/switch", HTTP_GET, switch_handler);
    server->on("/command", HTTP_POST, command_handler);

    server->onNotFound(not_found_handler);

    server->begin();
    
    // My workaround
    
    MDNS.end();
    LOG_F(("Setting mDNS hostname http://%s.local/\n",host));
    MDNS.begin(host);
    MDNS.addService("http", "tcp", 80);
    MDNS.setInstanceName("Power-switch");
}

With my workaround:

avahi-resolve-host-name switch.local
switch.local    192.168.2.98

With my workaround commented out:

root@octopi:/home/pi# avahi-resolve-host-name switch.local
Failed to resolve host name 'switch.local': Timeout reached

Arduino IDE 2.3.2, esp32 Arduino core 3.0.4, AsyncEspFsWebserver 1.0.7, board Nologo ESP32C3 SuperMini (it's an ESP32 S3 board, despite the name)

---

regarding reversed logic - it's a minor typo.

    if (!MDNS.begin(m_host.c_str())){
        log_error("MDNS responder started");
    }

Should be "MDNS responder failed to start".