Credential Manager API. Use get instead of request.

Author: Tatiana Gornak

demos/credential-management-api-test/credential.html

@@ -86,22 +86,32 @@ <h1>AN AMAZING DEMO OF THE ASTOUNDING CREDENTIAL MANAGER API!</h1>
     document.querySelector('button').addEventListener('click', function (e) {
       e.preventDefault();
       if (navigator.credentials) {
-        navigator.credentials.request().then(function (c) {
-          if (!c) {
-            addIssue("No <code>Credential</code> retrieved.");
-            return;
-          }
-
-          addNote("Retrieved: " + credentialToString(c));
-        }, function (e) {
-          addIssue("Error: <code>" + e.message + "</code>");
-        });
+        try {
+          navigator.credentials.request().then(
+            processCredentialsRequest(c) , function (e) {
+                addIssue("Error: <code>" + e.message + "</code>");
+            });
+        } catch(e) {
+          if (!(e instanceof TypeError))
+            throw e;
+          navigator.credentials.get().then(
+            processCredentialsRequest(c) , function (e) {
+              addIssue("Error: <code>" + e.message + "</code>");
+            });
+        }
       }
     });
 
     /*********************************************************************************
-     * HELPER FUNCTIONS THAT HAVE NOTHING TO DO WITH CREDENTIAL MANAGEMENT IN ITSELF *    
+     * HELPER FUNCTIONS THAT HAVE NOTHING TO DO WITH CREDENTIAL MANAGEMENT IN ITSELF *
      *********************************************************************************/
+    function processCredentialsRequest(credentials) {
+      if (!c) {
+        addIssue("No <code>Credential</code> retrieved.");
+        return;
+      }
+      addNote("Retrieved: " + credentialToString(c));
+    }
 
     function createCredentialFromForm(form) {
       try {