Apache + node
Hello,
I have a vps + ssl + apache and I use the following code:
```
const Proxy = require("coin-hive-stratum");
const domain = "MY_DOMAIN_HERE"
const proxy = new Proxy({
  host: "pool.supportxmr.com",
  port: 3333,
  key: require("fs").readFileSync("/etc/letsencrypt/live/" + domain + "/privkey.pem"),
  cert: require("fs").readFileSync("/etc/letsencrypt/live/" + domain + "/fullchain.pem"),
});
proxy.listen(443);
```

However, in the logs I have an error:
```
2017-12-10 22:03: pool connection error (a9dfdd9e-d1d4-459a-b037-6r056959b120): invalid_site_key
2017-12-10 22:03: proxy error: undefined
2017-12-10 22:15: Error: listen EADDRINUSE :::443
    at Object._errnoException (util.js:1024:11)
    at _exceptionWithHostPort (util.js:1046:20)
    at Server.setupListenHandle [as _listen2] (net.js:1351:14)
    at listenInCluster (net.js:1392:12)
    at Server.listen (net.js:1476:7)
    at Proxy.listen (/tratata/node_modules/coin-hive-stratum/build/Proxy.js:189:25)
    at Object.<anonymous> (/tratata/proxy_secure.js:9:7)
    at Module._compile (module.js:635:30)
    at Object.Module._extensions..js (module.js:646:10)
    at Module.load (module.js:554:32)

```
I think that the issue in Apache. Can you tell me please how to solve my issue?
I will be grateful for any help.
p.s
 I tried to specify a different port - everything worked, but on the site where the miner is installed in the dev.tool "Network" tab is written - "MY_DOMAIN - pending" and mining does not work.