add service worker

4 files changed, 33 insertions, 1 deletions

diff --git a/static/pwabuilder-sw.js b/static/pwabuilder-sw.js
new file mode 100644
index 0000000..860da8c
--- /dev/null
+++ b/static/pwabuilder-sw.js
@@ -0,0 +1,18 @@
+// This is the "Offline copy of pages" service worker
+
+const CACHE = "pwabuilder-offline";
+
+importScripts('https://storage.googleapis.com/workbox-cdn/releases/5.1.2/workbox-sw.js');
+
+self.addEventListener("message", (event) => {
+  if (event.data && event.data.type === "SKIP_WAITING") {
+    self.skipWaiting();
+  }
+});
+
+workbox.routing.registerRoute(
+  new RegExp('/*'),
+  new workbox.strategies.StaleWhileRevalidate({
+    cacheName: CACHE
+  })
+);
\ No newline at end of file
diff --git a/templates/document_details.html b/templates/document_details.html
index 9e98879..e387d1b 100644
--- a/templates/document_details.html
+++ b/templates/document_details.html
@@ -91,6 +91,10 @@
         </div>
     </div>
     </section>
-    
+    <script>
+        if (typeof navigator.serviceWorker !== 'undefined') {
+          navigator.serviceWorker.register('/static/pwabuilder-sw.js')
+        }
+      </script>
 </body>
 </html>
\ No newline at end of file
diff --git a/templates/home.html b/templates/home.html
index 31de085..5b5cd6b 100644
--- a/templates/home.html
+++ b/templates/home.html
@@ -22,5 +22,10 @@
         </div>
       </form>
     </div>
+    <script>
+      if (typeof navigator.serviceWorker !== 'undefined') {
+        navigator.serviceWorker.register('/static/pwabuilder-sw.js')
+      }
+    </script>
   </body>
 </html>
\ No newline at end of file
diff --git a/templates/search_results.html b/templates/search_results.html
index 28b7b24..bb544be 100644
--- a/templates/search_results.html
+++ b/templates/search_results.html
@@ -94,5 +94,10 @@
         </section>
     
     {{ end }}
+    <script>
+      if (typeof navigator.serviceWorker !== 'undefined') {
+        navigator.serviceWorker.register('/static/pwabuilder-sw.js')
+      }
+    </script>
 </body>
 </html>
\ No newline at end of file