| <script> |
| |
| if (window.testRunner) { |
| testRunner.dumpAsText(); |
| testRunner.waitUntilDone(); |
| } |
| |
| function log(msg) { |
| document.getElementById("logger").innerHTML += msg + "<br>"; |
| } |
| |
| function loaded() |
| { |
| // Make a 512k character string, which computes as 1mb of payload. |
| var object = "12345678"; |
| for (var i = 0; i < 16; ++i) |
| object += object; |
| |
| log("Pushing 63+mb of state objects (but less than 64mb)"); |
| |
| try { |
| // Push 63+mb of state objects (while the string is exactly 1mb, it counts for a little more than 1mb) |
| for (var i = 1; i < 64; ++i) |
| history.pushState(0, 0, object); |
| } catch (e) { |
| log("Unexpected exception pushing > 63mb but < 64mb of state objects: " + e); |
| } |
| |
| log ("Replacing the last state object with one that should fit"); |
| |
| try { |
| // replaceState with a 1mb state object. |
| // If replaceState counts against the global limit, this will cause an exception. |
| // But it should work. |
| history.replaceState(0, 0, object); |
| |
| log("It fit"); |
| } catch (e) { |
| log("Unexpected exception replacing the last state object: " + e); |
| } |
| |
| // Make the string be 1024k characters, which computes as 2mb of payload. |
| object += object; |
| |
| log ("Replacing the last state object with one that should not fit"); |
| |
| try { |
| // Replacing the 63rd 1mb string with a 2mb string *should* still trigger the limit. |
| history.replaceState(0, 0, object); |
| log("It fit, but should not have"); |
| } catch (e) { |
| log("Expected exception replacing the last state object: " + e); |
| } |
| |
| if (window.testRunner) |
| testRunner.notifyDone(); |
| } |
| |
| window.onload = loaded; |
| |
| </script> |
| <body> |
| Test should not crash.<br> |
| replaceState() should not always count against the global quota. Instead it should literally replace the most recent state object added.<br> |
| <div id="logger"></div> |
| </body> |
