<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=709256 --> <head> <title>Test for Bug 709256</title> <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> </head> <body> <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=709256">Mozilla Bug 709256</a> <p id="display"> <iframe id="test" style="width: 100px" src="data:text/html,<body style='width: 100%'>"> </iframe> </p> <div id="content" style="display: none"> </div> <pre id="test"> <script type="application/javascript"> /** Test for Bug 709256 **/ SimpleTest.waitForExplicitFinish(); addLoadEvent(function() { var ifr = $("test"); var bod = ifr.contentDocument.body; is(bod.getBoundingClientRect().width, 100, "Width of body should be 100px to start with"); var resizeHandlerRan = false; function handleResize() { resizeHandlerRan = true; is(bod.getBoundingClientRect().width, 50, "Width of body should now be 50px"); } var win = ifr.contentWindow; win.addEventListener("resize", handleResize, false); SpecialPowers.setFullZoom(win, 2); is(resizeHandlerRan, false, "Resize handler should not have run yet for this test to be valid"); // Now flush out layout on the subdocument, to trigger the resize handler is(bod.getBoundingClientRect().width, 50, "Width of body should still be 50px"); is(resizeHandlerRan, true, "Resize handler should have run"); win.removeEventListener("resize", handleResize, false); SimpleTest.finish(); }); </script> </pre> </body> </html>