| <!-- webkit-test-runner [ UsesBackForwardCache=true ] --> |
| <!DOCTYPE html> |
| <html> |
| <body> |
| <script src="../../resources/js-test.js"></script> |
| |
| <script> |
| let fileReader; |
| const testString = 'x'.repeat(10 * 1024); |
| let didRestoreFromBackForwardCache = false; |
| let successfulyLoaded = 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"); |
| didRestoreFromBackForwardCache = 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(); |
| } |
| }, false); |
| |
| function onLoad() |
| { |
| if (!didRestoreFromBackForwardCache) |
| return; |
| |
| testPassed("Received load event after restoring from the cache"); |
| successfulyLoaded = true; |
| } |
| |
| function onLoadEnd() |
| { |
| if (didRestoreFromBackForwardCache && successfulyLoaded) { |
| testPassed("Received loadend event"); |
| finishJSTest(); |
| return; |
| } |
| |
| setTimeout(() => { |
| fileReader.readAsText(new Blob([testString])); |
| }, 0); |
| } |
| |
| function runTest() { |
| description("Tests that an active FileReader that not prevent entering the back/forward cache."); |
| window.jsTestIsAsync = true; |
| |
| setTimeout(() => { |
| fileReader = new FileReader(); |
| fileReader.addEventListener("load", onLoad, false); |
| fileReader.addEventListener("loadend", onLoadEnd, false); |
| |
| fileReader.readAsText(new Blob([testString])); |
| |
| // Force a back navigation back to this page. |
| window.location.href = "../history/resources/page-cache-helper.html"; |
| }, 0); |
| } |
| |
| onload = runTest; |
| |
| </script> |
| </body> |
| </html> |
