feat(ui): Use a WebWorker for rendering the map layers when possible

backend/lib/webserver/WebServer.js

@@ -52,6 +52,7 @@ class WebServer {
         this.app.use(bodyParser.json());
 
         this.app.disable("x-powered-by");
+        this.app.use(Middlewares.CSPMiddleware);
         this.app.use(Middlewares.VersionMiddleware);
 
         const authMiddleware = this.createAuthMiddleware();

backend/lib/webserver/middlewares/CSPMiddleware.js

@@ -0,0 +1,10 @@
+/**
+ *
+ * @param {object} req
+ * @param {object} res
+ * @param {Function} next
+ */
+module.exports = function addCSPHeader(req, res, next) {
+    res.header("Content-Security-Policy", "worker-src 'self';");
+    next();
+};

backend/lib/webserver/middlewares/index.js

@@ -1,3 +1,4 @@
 module.exports = {
+    CSPMiddleware: require("./CSPMiddleware"),
     VersionMiddleware: require("./VersionMiddleware")
 };

frontend/package.json

@@ -46,6 +46,7 @@
     "react-router-dom": "5.3.0",
     "react-scripts": "4.0.3",
     "react-spring-bottom-sheet": "3.4.0",
+    "semaphore": "^1.1.0",
     "uuid": "8.3.2"
   },
   "devDependencies": {