erp5_web_renderjs_ui: simplify worker

bt5/erp5_web_renderjs_ui/PathTemplateItem/web_page_module/rjs_gadget_erp5_serviceworker.js

@@ -10,16 +10,7 @@
   self.addEventListener('install', function (event) {
     // Perform install step:  loading each required file into cache
     event.waitUntil(
-      // We create cache only if it does not exist. That is because
-      // we do not want to override an existing cache by mistake.
-      // Code consistency is very important. We must not mix different
-      // versions of code.
-      // (For example, developer change service worker code and forget
-      // to increase the cache version.)
-      caches.has(CACHE_NAME)
-        .then(function (result) {
-          if (!result) {
-            return fetch('WebSection_getPrecacheManifest')
+      fetch('WebSection_getPrecacheManifest')
         .then(function (response) {
           return Promise.all([
             response.json(),
@@ -46,16 +37,6 @@
           // Add all offline dependencies to the cache
           return Promise.all(promise_list);
         })
-              .catch(function (error) {
-                // Since we do not allow to override existing cache, if cache installation
-                // failed, we need to delete the cache completely.
-                caches.delete(CACHE_NAME);
-                // Explicitly unregister service worker else it may not be done.
-                self.registration.unregister();
-                throw error;
-              });
-          }
-        })
         .then(function () {
           // When user accesses ERP5JS web site first time, service worker is
           // installed but it is not activated yet, service worker is activated
@@ -67,6 +48,14 @@
           // the first one.
           return self.skipWaiting();
         })
+        .catch(function (error) {
+          // Since we do not allow to override existing cache, if cache installation
+          // failed, we need to delete the cache completely.
+          caches.delete(CACHE_NAME);
+          // Explicitly unregister service worker else it may not be done.
+          self.registration.unregister();
+          throw error;
+        })
     );
   });
 

bt5/erp5_web_renderjs_ui/PathTemplateItem/web_page_module/rjs_gadget_erp5_serviceworker.xml

@@ -238,7 +238,7 @@
                   </item>
                   <item>
                       <key> <string>serial</string> </key>
-                      <value> <string>981.45037.17470.33382</string> </value>
+                      <value> <string>981.48930.15634.60876</string> </value>
                   </item>
                   <item>
                       <key> <string>state</string> </key>
@@ -256,7 +256,7 @@
                           </tuple>
                           <state>
                             <tuple>
-                              <float>1581092014.2</float>
+                              <float>1581325589.75</float>
                               <string>UTC</string>
                             </tuple>
                           </state>