Fix server line detection

server.js

@@ -63,14 +63,14 @@ function getOpenVPNSetting() {
     tmp = tmp.filter((l) => { return l && l[0] !== '#'; });
 
     function findItem(prefix) {
-        let idx = tmp.findIndex((l) => { return l.indexOf(prefix) === 0; });
+        let idx = tmp.findIndex((l) => { return l.indexOf(prefix) !== -1; });
         if (idx === -1) return null;
 
         return tmp[idx].slice(prefix.length).trim().replace(/["]+$/g, '');
     }
 
-    settings.address = findItem('server').split(' ')[0];
-    settings.netmask = findItem('server').split(' ')[1];
+    settings.address = findItem('server ').split(' ')[0];
+    settings.netmask = findItem('server ').split(' ')[1];
     settings.dnsServer = findItem('push "dhcp-option DNS');
     settings.allowICC = findItem('client-to-client') !== null;
 
@@ -97,7 +97,7 @@ function setOpenVPNSetting(settings) {
     else tmp[idx] = value;
 
     // server
-    idx = tmp.findIndex((l) => { return l.indexOf('server ') !== -1; });
+    idx = tmp.findIndex((l) => { return l.indexOf('server ') === 0 || l.indexOf('# server ') === 0; });
     value = `server ${settings.address} ${settings.netmask}`;
     if (idx === -1) tmp.push(value);
     else tmp[idx] = value;