| <!-- webkit-test-runner [ UsesBackForwardCache=true ] --> |
| <!DOCTYPE html> |
| <html> |
| <body> |
| <script src="../../resources/js-test-pre.js"></script> |
| <script> |
| description('Tests that a page that has a MessagePort with a pending message can enter PageCache.'); |
| window.jsTestIsAsync = true; |
| |
| let afterPageCacheRestore = false; |
| |
| window.addEventListener("pageshow", function(event) { |
| debug("pageshow - " + (event.persisted ? "" : "not ") + "from cache"); |
| |
| if (event.persisted) { |
| testPassed("Page did enter and was restored from the page cache"); |
| afterPageCacheRestore = true; |
| } |
| }, false); |
| |
| window.addEventListener("pagehide", function(event) { |
| debug("pagehide - " + (event.persisted ? "" : "not ") + "entering cache"); |
| if (!event.persisted) { |
| testFailed("Page did not enter the page cache."); |
| finishJSTest(); |
| } |
| port2.postMessage("foo"); |
| }, false); |
| |
| window.addEventListener('load', function() { |
| channel = new MessageChannel(); |
| port1 = channel.port1; |
| port1.onmessage = (_e) => { |
| e = _e; |
| shouldBeEqualToString("e.data", "foo"); |
| shouldBeTrue("afterPageCacheRestore"); |
| finishJSTest(); |
| }; |
| port2 = channel.port2; |
| |
| // This needs to happen outside the onload handler so that a history |
| // item is created. |
| setTimeout(function() { |
| // Force a back navigation back to this page. |
| window.location = "resources/page-cache-helper.html"; |
| }, 0); |
| }, false); |
| |
| </script> |
| <script src="../../resources/js-test-post.js"></script> |
| </body> |
| </html> |
