<html> <head> <script> function test() { alert( 'This test verifies that exception thrown while converting an object to string ' + 'are correctly propagated and do not crash the browser.'); if (window.testRunner) { testRunner.dumpAsText(); } var throwing = { toString: function() { throw 'EXCEPTION'; } }; try { document.images.item(throwing); alert('FAIL: document.images.item(throwing) should have thrown an exception!'); } catch (e) { alert('OK: ' + e); } try { document.images[throwing]; alert('FAIL: document.images[throwing] should have thrown an exception!'); } catch (e) { alert('OK: ' + e); } } </script> </head> <body onload='test()'> </body> </html>