minor improvement in the client-side code of the still-loading screen

service-worker.js

@@ -1509,11 +1509,13 @@ self.addEventListener('fetch', async event => {
                                             if ( event.data.url === window.location.href ) {
                                                 if ( event.data.state === 'success' ) {
                                                     header.innerHTML = "Loaded, redirecting!"
+                                                    document.title = "Loaded, redirecting!"
                                                     text.innerHTML = "The content has loaded, you are being redirected."
 
                                                     window.location.reload()
                                                 } else if ( event.data.state === 'failed' ) {
                                                     header.innerHTML = "Loading failed."
+                                                    document.title = "Loading failed."
                                                     text.innerHTML = "We're sorry, we were unable to load this page."
                                                 } 
                                                 if ( 'error' in event.data ) {