<!DOCTYPE html><html><head><title>javascript: URL creating a document in an about:blank iframe</title> <link rel="help" href="https://html.spec.whatwg.org/multipage/#the-iframe-element"> <link rel="help" href="https://html.spec.whatwg.org/multipage/#process-the-iframe-attributes"> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> </head> <body> <div id="log">FAILED (test did not run)</div> <iframe src="about:blank" name="ifr1"></iframe> <iframe src="" name="ifr2"></iframe> <iframe src="./" name="ifr3"></iframe> <script> var test = async_test(); var results = {}; var expected = { ifr1:{url:"about:blank", sameDom: true}, ifr2:{url:"about:blank", sameDom: true}, ifr3:{url: location.href.replace(/\/[^\/]*$/, '/'), sameDom: true }, ifr4:{url:"about:blank", sameDom: true} } var js_url = 'javascript:"<html><script>var sameDom = false; try{var cn = top.document.body.className;sameDom = true;}catch(e){}; parent.postMessage( {url: document.URL, name: name, sameDom: sameDom}, \'*\')<\/script><body><p>JS-generated document</p></body></<html>";' window.addEventListener('message', function(e){ var ifr = e.data.name; results[ifr] = e.data; test.step(function(){ assert_equals(results[ifr].url, expected[ifr].url); assert_equals(results[ifr].sameDom, expected[ifr].sameDom); }, 'Testing URL and details of IFRAME ' + ifr); if(Object.keys(results).length === Object.keys(expected).length){ test.done(); } }, false); var ifr = document.createElement('iframe'); ifr.name = 'ifr4'; document.body.appendChild(ifr); window.onload = function () { for (var i = 0, frame, frames = document.getElementsByTagName('iframe'); frame = frames[i]; i++) { try{ frame.src = js_url; }catch(e){ results[frame.name] = 'Exception on setting!'; } }; } </script> </body> </html>