build: import virtual file handling sw in main sw

src/virtual-file-service-worker.js

@@ -0,0 +1,44 @@
+self.addEventListener('fetch', function(event) {
+	// console.log("fetch event", event.request.url);
+	if (event.request.url.indexOf('/user/') !== -1) {
+		event.respondWith(
+			caches.match(event.request).then(response => {
+				// console.log("responding with ", response);
+				if (response !== undefined) {
+					return response;
+				}
+				return '';
+			})
+		);
+	}
+});
+
+function getContentType(url) {
+	if (url.match(/\.html$/)) {
+		return 'text/html; charset=UTF-8';
+	} else if (url.match(/\.css$/)) {
+		return 'text/css; charset=UTF-8';
+	}
+	if (url.match(/\.js$/)) {
+		return 'application/javascript; charset=UTF-8';
+	}
+	return 'text/html; charset=UTF-8';
+}
+self.addEventListener('message', function(e) {
+	// console.log("message aya sw main", e.data);
+	caches.open('webmaker-files').then(function(cache) {
+		for (const url in e.data) {
+			if (Object.prototype.hasOwnProperty.call(e.data, url)) {
+				// console.log('Received data', url, e.data[url])
+				cache.put(
+					url,
+					new Response(e.data[url], {
+						headers: {
+							'Content-Type': getContentType(url)
+						}
+					})
+				);
+			}
+		}
+	});
+});