<!DOCTYPE html> <html> <head> <title>Tests that cross-origin access is granted to null-origin embedded iframe</title> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> <script src="/common/get-host-info.sub.js"></script> </head> <body> <script type="text/javascript"> const url = get_host_info().HTTP_REMOTE_ORIGIN + "/xhr/resources/access-control-origin-header.py"; async_test(function(test) { window.addEventListener("message", test.step_func(function(evt) { if (evt.data == "ready") { document.getElementById("frame").contentWindow.postMessage(url, "*"); } else { assert_equals(evt.data, "PASS: Cross-domain access allowed.\nHTTP_ORIGIN: null"); test.done(); } }), false); }, "Access granted to null-origin iframe"); </script> <iframe id="frame" src='data:text/html, <script> (function() { parent.postMessage("ready", "*"); window.addEventListener("message", function(evt) { try { const url = evt.data; const xhr = new XMLHttpRequest; xhr.open("GET", url, false); xhr.send(); parent.postMessage(xhr.responseText, "*"); } catch(e) { parent.postMessage(e.message, "*"); } }); })(); </script>'> </body> </html>