diff --git a/.gitignore b/.gitignore
index 3a46f40..5537fb4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
+.DS_Store
+
 d3/
 font-awesome-4.7.0/
 jquery*
\ No newline at end of file
diff --git a/README.md b/README.md
index 61ac42b..1564d24 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ On your web browser, just access the file `graphexp.html`.
 
 Next step, configure the server settings on the bottom of the page. The default Gremlin server address is `localhost:8182`. You will have to specify the communication protocol `websocket` or `REST` and the gremlin server version. Graphexp is not able to handle secure connections yet and a contribution on this topic would be welcome.
 
-Graphexp works with [Amazon Neptune](https://aws.amazon.com/neptune) thanks to a pull request of [jwalton922](https://github.com/jwalton922). With this database, set `SINGLE_COMMANDS_AND_NO_VARS = true` in the file `graphConf.js`.
+Graphexp works with [Amazon Neptune](https://aws.amazon.com/neptune). With this database, set `SINGLE_COMMANDS_AND_NO_VARS = true` in the file `graphConf.js`. if you use REST over `https` you may need to set `REST_USE_HTTPS = true` as well.
 
 Additional parameters can be configured inside the file `graphConf.js`.
 
diff --git a/graphexp.html b/graphexp.html
index 654423a..7ae324c 100644
--- a/graphexp.html
+++ b/graphexp.html
@@ -145,6 +145,7 @@ <h1 class="header-heading">Graph Explorer v 0.6</h1>
 						<label for="server_protocol">Protocol:</label>
 						<select name="server_protocol" id="server_protocol">
 							<option value="websocket">websocket</option>
+							<option value="websockets">websocket secure</option>
 							<option value="REST">REST</option>
 						</select>
 					</div>
diff --git a/scripts/graphConf.js b/scripts/graphConf.js
index f002e39..5f13c1d 100644
--- a/scripts/graphConf.js
+++ b/scripts/graphConf.js
@@ -8,6 +8,9 @@ const host = false;
 // For implementations like Neptune where only single commands are allowed per request
 // set to true
 const SINGLE_COMMANDS_AND_NO_VARS = false;
+// For implementations like Neptune where communication only over https is allowed
+// set to true
+const REST_USE_HTTPS = false;
 
 // Time out for the REST protocol. Increase it if the graphDB is slow.
 const REST_TIMEOUT = 2000 
diff --git a/scripts/graphioGremlin.js b/scripts/graphioGremlin.js
index 46bb2b5..b35675e 100644
--- a/scripts/graphioGremlin.js
+++ b/scripts/graphioGremlin.js
@@ -172,7 +172,7 @@ var graphioGremlin = (function(){
         var edge_filter = $('#edge_filter').val();
         var communication_method = $('#communication_method').val();
 		var id = d.id;
-		if(isNaN(id)){ // Add quotes if id is a string (not a number).
+		if (typeof id === 'string' || id instanceof String) { // Add quotes if id is a string (not a number).
 			id = '"'+id+'"';
 		}
 		// Gremlin query
@@ -216,13 +216,22 @@ var graphioGremlin = (function(){
 		let server_port = $('#server_port').val();
 		let COMMUNICATION_PROTOCOL = $('#server_protocol').val();
 			if (COMMUNICATION_PROTOCOL == 'REST'){
-				let server_url = "http://"+server_address+":"+server_port;
+				let server_url = ""
+				if(REST_USE_HTTPS){
+					server_url = "https://"+server_address+":"+server_port;
+				} else{
+					server_url = "http://"+server_address+":"+server_port;
+				}
 				run_ajax_request(gremlin_query,server_url,query_type,active_node,message,callback);
 			}
 			else if (COMMUNICATION_PROTOCOL == 'websocket'){
 				let server_url = "ws://"+server_address+":"+server_port+"/gremlin"
 				run_websocket_request(gremlin_query,server_url,query_type,active_node,message,callback);
 			}
+			else if (COMMUNICATION_PROTOCOL == 'websockets'){
+				let server_url = "wss://"+server_address+":"+server_port+"/gremlin"
+				run_websocket_request(gremlin_query,server_url,query_type,active_node,message,callback);
+			}
 			else {
 				console.log('Bad communication protocol. Check configuration file. Accept "REST" or "websocket" .')
 			}
@@ -442,7 +451,7 @@ var graphioGremlin = (function(){
 	  // find the element in list with id equal to elem
 	  // return its index or null if there is no
 	  for (var i=0;i<list.length;i++) {
-		if (list[i].id == elem) return i;
+		if (list[i].id === elem) return i;
 	  }
 	  return null;
 	}