[Offline] Ignoring query string in static files

src/service-worker.js

@@ -44,7 +44,15 @@ self.addEventListener('fetch', event => {
 
 	// always serve static files and bundler-generated assets from cache
 	if (url.host === self.location.host && cached.has(url.pathname)) {
-		event.respondWith(caches.match(event.request));
+		event.respondWith(
+			caches.match(event.request, {
+				/**
+				 * Ignoring query string, for example ignore `?foo=bar` in `/logo.svg?foo=bar`
+				 * Read more about cache.match options: http://bit.ly/2Is35VP
+				 */
+				'ignoreSearch': true,
+			})
+		);
 		return;
 	}