| <body> |
| <script> |
| function test() { |
| if (!sessionStorage.subresourceFailoverToNetworkLoadedBefore) { |
| if (window.testRunner) { |
| testRunner.dumpAsText(); |
| testRunner.waitUntilDone(); |
| } |
| sessionStorage.subresourceFailoverToNetworkLoadedBefore = true; |
| |
| document.cookie = "subresourceFailoverToNetwork=FAIL"; |
| |
| // The results of the form submission is a page that performs a non- |
| // cacheable sync XHR request. Upon returning to that page, we expect the |
| // sync XHR request to still succeed. This relies on it loading from the |
| // network and not being restricted to loading from the cache (as the main |
| // page is). |
| setTimeout( function() { document.forms[0].submit(); }, 0); |
| } else |
| history.forward(); |
| } |
| |
| onload = test; |
| </script> |
| <form method="POST" action="resources/subresource-failover-to-network.cgi" enctype="multipart/form-data"> |
| <input type="submit"> |
| </form> |
| <p> |
| This test verifies that a synchronous XMLHttpRequest, generated from a page |
| that is the result of a form submission, loads properly when the user navigates |
| back to the page. |
| <p> |
| When navigating back to a page that resulted from a form submission, the page |
| is loaded with the ReturnCacheDataDontLoad cache policy. It is important that |
| subresources (including XMLHttpRequest instances) do not inherit this cache |
| policy. |
| <p> |
| This test doesn't work in browser, because it expects page cache to be disabled. |
| </body> |
