diff --git a/.gitignore b/.gitignore
index 9d1110aa..a62cbcce 100644
--- a/.gitignore
+++ b/.gitignore
@@ -37,6 +37,7 @@ package-lock.json
 mod_cache.json
 static/pictures/spritesheet.js
 static/pictures/spritesheet.png
+static/external
 
 # weird pattern to ignore sharedPlugins except not ignore some core modules
 !sharedPlugins/
diff --git a/lib/npmPostinstall.js b/lib/npmPostinstall.js
index 8fc1de66..2d73c004 100644
--- a/lib/npmPostinstall.js
+++ b/lib/npmPostinstall.js
@@ -1,35 +1,61 @@
 var mkdirp = require("mkdirp");
 var http = require('http');
+var https = require('https');
 var fs = require('fs');
 
+function makeDirectory(path){
+	return new Promise((resolve, reject) => {
+		mkdirp(path, function(err){
+			if(err){
+				console.error("Unable to mkdirp "+path);
+				console.error(err);
+				resolve(false);
+			} else {
+				console.log("mkdirp "+path);
+				resolve(true);
+			}
+		});
+	});
+}
+function download(url, file, callback){
+	return new Promise((resolve, reject) => {
+		let pathArray = file.split("/");
+		pathArray.pop(); // remove filename from the end
+		if(pathArray.length >= 1){
+			// this might be an invalid path!
+			fs.stat(pathArray.join("/"), (err, stat) => {
+				if(err){
+					makeDirectory(pathArray.join("/")).then(()=>{
+						doDownload(url, file, callback);
+					});
+				} else {
+					doDownload(url, file, callback);
+				}
+			});
+		} else {
+			doDownload(url, file, callback);
+		}
+		function doDownload(url, file, callback){
+			var writeStream = fs.createWriteStream(file);
+			let protocol = http;
+			if(url.split(":")[0] == "https") protocol = https;
+			var request = protocol.get(url, function(response) {
+				response.pipe(writeStream);
+				response.on("end", () => {
+					if(callback && typeof callback == "function") callback(file);
+					console.log("Downloaded "+file+" from "+url);
+					resolve();
+				});
+			});
+		}
+	});
+}
+
 var directories = [
 	"database/linvodb",
 	"sharedMods",
 	"instances",
 ];
-
-directories.forEach(path => {
-	mkdirp("database/linvodb", function(err){
-		if(err){
-			console.error("Unable to mkdirp "+path);
-			console.error(err);
-		} else {
-			console.log("mkdirp "+path);
-		}
-	});
-});
-
-function download(url, file, callback){
-	var writeStream = fs.createWriteStream(file);
-	var request = http.get(url, function(response) {
-	  response.pipe(writeStream);
-	  response.on("end", () => {
-			if(callback && typeof callback == "function") callback(file);
-			console.log("Downloaded "+file+" from "+url);
-	  });
-	});
-}
-
 let downloadList = [
 	{
 		url: "http://fbpviewer.trakos.pl/images/spritesheet.json",
@@ -42,10 +68,58 @@ let downloadList = [
 		url: "http://fbpviewer.trakos.pl/images/spritesheet.png",
 		file: "static/pictures/spritesheet.png",
 	},
+	{
+		url: "https://code.jquery.com/jquery.js",
+		file: "static/external/jquery.js",
+	},
+	{
+		url: "https://code.jquery.com/ui/1.12.1/jquery-ui.js",
+		file: "static/external/jquery-ui.js",
+	},
+	{
+		url: "https://cdnjs.cloudflare.com/ajax/libs/canvasjs/1.7.0/canvasjs.js",
+		file: "static/external/canvasjs.js",
+	},
+	{
+		url: "https://momentjs.com/downloads/moment.min.js",
+		file: "static/external/moment.min.js",
+	},
+	{
+		url: "https://craig.global.ssl.fastly.net/js/mousetrap/mousetrap.min.js",
+		file: "static/external/mousetrap.min.js",
+	},
+	{
+		url: "https://fonts.googleapis.com/css?family=Roboto",
+		file: "static/external/css/Roboto.css",
+	},
+	{
+		url: "https://cdnjs.cloudflare.com/ajax/libs/socket.io/2.0.4/socket.io.js",
+		file: "static/external/socket.io.js",
+	},
 ]
-downloadList.forEach(item => {
-	download(item.url, item.file, item.callback);
-});
+
+// initiate folder creations and downloads
+processMkdirRecursive(processDownloadRecursive);
+function processMkdirRecursive(callback){
+	let item = directories.shift();
+	makeDirectory(item).then(()=>{
+		if(directories.length == 0){
+			if(callback) callback();
+		} else {
+			processMkdirRecursive(callback);
+		}
+	});
+}
+function processDownloadRecursive(callback){
+	let item = downloadList.shift();
+	download(item.url, item.file, item.callback).then(()=>{
+		if(downloadList.length == 0){
+			if(callback) callback();
+		} else {
+			processDownloadRecursive(callback);
+		}
+	});
+}
 
 // generate SSL certificates if they are missing
 if(!fs.existsSync("database/certificates") || !fs.existsSync("database/certificates/cert.crt") || !fs.existsSync("database/certificates/cert.key")){
diff --git a/static/head.html b/static/head.html
index 8bfe6575..c503fe6b 100644
--- a/static/head.html
+++ b/static/head.html
@@ -1,9 +1,9 @@
 <title>Clusterio</title>
 <link rel="stylesheet" type="text/css" href="style.css">
-<script src="https://code.jquery.com/jquery.js"></script>
-<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
-<script src="https://cdnjs.cloudflare.com/ajax/libs/canvasjs/1.7.0/canvasjs.js"></script>
-<script src="https://momentjs.com/downloads/moment.min.js"></script>
-<script src="https://craig.global.ssl.fastly.net/js/mousetrap/mousetrap.min.js"></script>
+<script src="external/jquery.js"></script>
+<script src="external/jquery-ui.js"></script>
+<script src="external/canvasjs.js"></script>
+<script src="external/moment.min.js"></script>
+<script src="external/mousetrap.min.js"></script>
 <script src="main.js"></script>
-<link href="https://fonts.googleapis.com/css?family=Roboto" rel="stylesheet">
\ No newline at end of file
+<link href="external/css/Roboto.css" rel="stylesheet">
\ No newline at end of file
diff --git a/static/remoteMap.html b/static/remoteMap.html
index 0a8f8841..fbaa2278 100644
--- a/static/remoteMap.html
+++ b/static/remoteMap.html
@@ -1,7 +1,7 @@
 <!doctype HTML>
 <head>
 	<%- include("head.html") %>
-	<script src="https://cdnjs.cloudflare.com/ajax/libs/socket.io/2.0.4/socket.io.js"></script>
+	<script src="external/socket.io.js"></script>
 	<script type="module" src="remoteMap.js"></script>
 </head>