| // META: script=/resources/testdriver.js | 
 | // META: script=/resources/testdriver-vendor.js | 
 |  | 
 | 'use strict'; | 
 |  | 
 | // Here's the set-up for this test: | 
 | // Step 1 (top-frame) Set up listener for "HasAccess" message. | 
 | // Step 2 (top-frame) Add data to first-party indexed db. | 
 | // Step 3 (top-frame) Embed an iframe that's cross-site with top-frame. | 
 | // Step 4 (sub-frame) Try to use storage access API and read first-party data. | 
 | // Step 5 (sub-frame) Embed an iframe that's same-origin with top-frame. | 
 | // Step 6 (sub-sub-frame) Try to use storage access API and read first-party data. | 
 | // Step 7 (sub-sub-frame) Send "HasAccess for indexedDB" message to top-frame. | 
 | // Step 8 (top-frame) Receive "HasAccess for indexedDB" message and cleanup. | 
 |  | 
 | async_test(t => { | 
 |   // Step 1 | 
 |   window.addEventListener("message", t.step_func(e => { | 
 |     if (e.data.type != "result") { | 
 |       return; | 
 |     } | 
 |     // Step 8 | 
 |     assert_equals(e.data.message, "HasAccess for indexedDB", "Storage Access API should be accessible and return first-party data"); | 
 |     t.done(); | 
 |   })); | 
 |  | 
 |   // Step 2 | 
 |   const id = Date.now(); | 
 |   let request = window.indexedDB.open(id); | 
 |   request.onsuccess = () => { | 
 |     // Step 3 | 
 |     let iframe = document.createElement("iframe"); | 
 |     iframe.src = "https://{{hosts[alt][]}}:{{ports[https][0]}}/storage-access-api/resources/storage-access-beyond-cookies-iframe.sub.html?type=indexedDB&id="+id; | 
 |     document.body.appendChild(iframe); | 
 |   }; | 
 | }, "Verify StorageAccessAPIBeyondCookies for IndexedDB"); |