We should implement the onshow event handler from HTML5.
Created attachment 125075 [details] Manual Test Case I believe this bug depends on https://bugs.webkit.org/show_bug.cgi?id=50555.
onshow is deprecated: https://developer.mozilla.org/en-US/docs/Web/API/Element/show_event Also from attached test case, I don't get any alert in any browser (Safari, Chrome and Firefox - when I right click). I think this can be marked as "RESOLVED WONTFIX" but I would leave someone else to confirm whether I am right. Thanks!
Yeah, this is won't fix at this point.