1 files changed, 39 insertions, 0 deletions
diff --git a/swayback/static/sw.js b/swayback/static/sw.js
new file mode 100644
index 0000000..f3a63db
--- /dev/null
+++ b/swayback/static/sw.js
@@ -0,0 +1,39 @@
+self.addEventListener('install', function(event) {
+	console.log ('installed service worker', event);
+	self.skipWaiting();
+});
+/* load stuff through service worker immediately? XXX: only debugging? */
+self.addEventListener('activate', event => {
+  event.waitUntil(clients.claim());
+});
+
+self.addEventListener('fetch', function(event) {
+	console.log ('fetch event', event.request.url, event);
+	let url = new URL (event.request.url);
+	url.protocol = 'https:';
+	url.port = 443;
+	url.hash = '';
+	if (url.hostname.endsWith ('.swayback.localhost')) {
+		url.hostname = url.hostname.slice (0, url.hostname.length-'.swayback.localhost'.length);
+	}
+	console.log ('orig url', url);
+	let body = new FormData ();
+	body.append ('url', url);
+	body.append ('method', event.request.method);
+	let req = new Request ('http://swayback.localhost:5000/raw', {method: 'POST', body: body});
+
+	event.respondWith (
+		fetch(req)
+		.then(function (response) {
+			// response may be used only once
+			// we need to save clone to put one copy in cache
+			// and serve second one
+			let responseClone = response.clone();
+			console.log ('got resp', responseClone);
+			return response;
+		})
+		.catch (function () {
+			console.log ('nope');
+		})
+	);
+});