26127 2009-06-01 20:08:46 -0700 __defineSetter__/__defineGetter__ is ignored on native properties 2009-06-04 04:10:37 -0700 1 1 1 Unclassified WebKit WebCore JavaScript 528+ (Nightly build) All All RESOLVED DUPLICATE 12721 P2 Normal --- 0 t.brain webkit-unassigned ap oldest_to_newest 123918 0 t.brain 2009-06-01 20:08:46 -0700 When trying to attach a getter/setter to a native DOM property on an element, the getter/setter seems to be ignored and is never called. The original behavior is maintained. Use this simple code testcase: <div id="d"></div> <script type="text/javascript"> var o=document.getElementById("d"); o.__defineSetter__("id",function () { alert("SET"); }); o.id="test"; </script> Expected behavior: an alert saying "SET". Actual behavior: nothing. The same code works as expected in Firefox and Chrome. Similarly, attaching the getter/setter on the prototype (for example, on HTMLDivElement.prototype) fails on Safari and Chrome as well, but works as expected in Firefox. 123924 1 t.brain 2009-06-01 20:34:06 -0700 It's worth noting that this testcase also works as expected in Opera, and the same functionality can be achieved in IE8 using their getter/setter syntax: Object.defineProperty(o, "id", { set: function () { alert("SET"); } }); /* or */ Object.defineProperty(HTMLDivElement.prototype, "id", { set: function () { alert("SET"); } }); 124286 2 30941 ap 2009-06-04 04:07:26 -0700 Created attachment 30941 test case Same test, as an attachment. 124288 3 ap 2009-06-04 04:10:37 -0700 *** This bug has been marked as a duplicate of 12721 *** 30941 2009-06-04 04:07:26 -0700 2009-06-04 04:07:26 -0700 test case getter-setter.html text/html 183 ap PGJvZHk+CjxkaXYgaWQ9ImQiPjwvZGl2Pgo8c2NyaXB0IHR5cGU9InRleHQvamF2YXNjcmlwdCI+ CnZhciBvPWRvY3VtZW50LmdldEVsZW1lbnRCeUlkKCJkIik7CgpvLl9fZGVmaW5lU2V0dGVyX18o ImlkIixmdW5jdGlvbiAoKSB7IGFsZXJ0KCJTRVQiKTsgfSk7CgpvLmlkPSJ0ZXN0IjsKPC9zY3Jp cHQ+CjwvYm9keT4K