[WIP]모바일 로그인창 테스트 강화중

userfront/web/index.html

@@ -122,7 +122,7 @@
     </main>
     <script>
       var baronBootstrapStartedAt = performance.now();
-      var baronMinimumShellMs = 1100;
+      var baronMinimumShellMs = 0;
       window.addEventListener("flutter-first-frame", function () {
         var elapsedMs = performance.now() - baronBootstrapStartedAt;
         window.setTimeout(
@@ -136,6 +136,63 @@
         );
       });
     </script>
-    <script src="flutter_bootstrap.js" async></script>
+    <script>
+      (function () {
+        function loadFlutter() {
+          var script = document.createElement("script");
+          script.src = "flutter_bootstrap.js";
+          script.async = true;
+          document.body.appendChild(script);
+        }
+
+        var hostname = window.location.hostname;
+        var isLocalhost =
+          hostname === "localhost" || hostname === "127.0.0.1" || hostname === "::1";
+        if (!isLocalhost || !("serviceWorker" in navigator)) {
+          loadFlutter();
+          return;
+        }
+
+        navigator.serviceWorker
+          .getRegistrations()
+          .then(function (registrations) {
+            return Promise.all(
+              registrations.map(function (registration) {
+                return registration.unregister();
+              }),
+            );
+          })
+          .then(function () {
+            if (!window.caches) {
+              return;
+            }
+            return caches.keys().then(function (keys) {
+              return Promise.all(
+                keys
+                  .filter(function (key) {
+                    return (
+                      key.indexOf("baron-userfront-") === 0 ||
+                      key.indexOf("flutter-app-cache") === 0
+                    );
+                  })
+                  .map(function (key) {
+                    return caches.delete(key);
+                  }),
+              );
+            });
+          })
+          .then(function () {
+            if (navigator.serviceWorker.controller) {
+              window.location.reload();
+              return;
+            }
+            loadFlutter();
+          })
+          .catch(function (error) {
+            console.warn("[baron] failed to clear local service worker", error);
+            loadFlutter();
+          });
+      })();
+    </script>
   </body>
 </html>