diff --git a/auth/index.html b/auth/index.html
index 998a04c..b1f742c 100644
--- a/auth/index.html
+++ b/auth/index.html
@@ -1070,6 +1070,32 @@ <h2>Message log</h2>
       document.addEventListener(
         "DOMContentLoaded",
         async function () {
+          if (navigator.storage && navigator.storage.persist) {
+            navigator.storage.persist().then((persistent) => {
+              if (persistent) {
+                console.log(
+                  "Storage will not be cleared except by explicit user action"
+                );
+              } else {
+                console.log(
+                  "Storage may be cleared by the UA under storage pressure."
+                );
+              }
+            });
+          }
+
+          var promise = document.requestStorageAccess();
+          promise.then(
+            function (arg) {
+              // Storage access was granted.
+              console.log("got perms", arg);
+            },
+            function (arg) {
+              // Storage access was denied.
+              console.log("no perms", arg);
+            }
+          );
+          
           await TKHQ.initEmbeddedKey();
           var embeddedKeyJwk = await TKHQ.getEmbeddedKey();
           var targetPubBuf = await TKHQ.p256JWKPrivateToPublic(embeddedKeyJwk);