| <!DOCTYPE html> | |
| <html> | |
| <body> | |
| <script> | |
| window.addEventListener("beforeunload", (event) => { | |
| xhr = new XMLHttpRequest(); | |
| xhr.open("GET", "/resources/dummy.xml", false); | |
| try { | |
| xhr.send(null); | |
| opener.testFailed("Doing a synchronous XHR in the beforeunload event handler did not throw"); | |
| } catch (e) { | |
| opener.testPassed("Doing a synchronous XHR in the beforeunload event handler threw an exception"); | |
| } | |
| opener.finishJSTest(); | |
| }); | |
| </script> | |
| </body> | |
| </html> |