| <html> |
| <script> |
| if (window.testRunner) { |
| testRunner.dumpAsText(); |
| testRunner.waitUntilDone(); |
| } |
| |
| function log(strings) { |
| var node = document.getElementById('result'); |
| for (var i in strings) { |
| node.innerHTML += strings[i] + '<br>'; |
| } |
| } |
| |
| function gc() |
| { |
| if (window.GCController) { |
| GCController.collect(); |
| } else { |
| for (var i = 0; i < 10000; i++) { |
| var s = new String("abc"); |
| } |
| } |
| } |
| |
| var old_nav; |
| |
| function test() { |
| // remember the old navigator |
| old_nav = window.frames[0].navigator; |
| // detach the old navigator |
| var p = document.getElementById("subframe"); |
| p.parentNode.removeChild(p); |
| if (window.GCController) |
| window.GCController.collect(); |
| |
| // Check once immediately |
| check_navigator(); |
| |
| gc(); |
| |
| // Check one more time later, when the frame is likely to be destroyed. |
| setTimeout(check_navigator_and_done, 200); |
| } |
| |
| function check_navigator_and_done() { |
| check_navigator(); |
| if (window.testRunner) |
| testRunner.notifyDone(); |
| } |
| |
| function check_navigator() { |
| var strings = [ ]; |
| for (p in old_nav) { |
| // Don't include some features until most platforms have support. |
| if (p == 'geolocation' || p == 'getUserMedia' || p == 'mediaDevices' || p == "getGamepads") |
| continue; |
| |
| if (typeof old_nav[p] == 'function') { |
| try { |
| var v = old_nav[p](); |
| // no crash, it is ok |
| strings.push("navigator."+p+"() is OK"); |
| } catch(err) { |
| // navigator.registerXXX will throw on invalid input. |
| strings.push("navigator."+p+"() threw err "+err); |
| } |
| } else { |
| var v = old_nav[p]; |
| // no crash, it is ok. |
| strings.push("navigator."+p+" is OK"); |
| } |
| } |
| strings.sort(); |
| log(strings); |
| } |
| |
| </script> |
| <body onload="test()"> |
| This tests that the navigator object of a deleted frame is disconnected |
| properly. Accessing fields or methods shouldn't crash the browser. |
| <br> |
| <iframe id="subframe" src="about:blank"></iframe> |
| <button onclick="check_navigator()">Check Navigator</button><br> |
| <div id="result"></div> |
| </body> |
| </html> |
