| <!doctype html> |
| <title>Referrer Policy: navigating back to an about:srcdoc iframe reuses the original referrer policy</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/common/get-host-info.sub.js"></script> |
| <script src="resources/make-html-script.js"></script> |
| <meta name="referrer" content="no-referrer"> |
| <div id="log"></div> |
| <script> |
| let reportedReferrer = () => { |
| return new Promise(resolve => { |
| window.addEventListener("message", function listener(msg) { |
| window.removeEventListener("message", listener, false); |
| resolve(msg.data.referrer); |
| }); |
| }); |
| }; |
| |
| let iframeLoaded = iframe => { |
| return new Promise(resolve => { |
| iframe.onload = resolve; |
| }); |
| }; |
| |
| promise_test(async t => { |
| // 1. Create an about:srcdoc iframe. |
| const iframe = document.createElement("iframe"); |
| iframe.name = 'test_frame'; |
| let iframe_load_1 = iframeLoaded(iframe); |
| let referrer_1 = reportedReferrer(); |
| iframe.srcdoc = createScriptString(get_host_info().REMOTE_ORIGIN, |
| location.origin + "/custom"); |
| document.body.appendChild(iframe); |
| await iframe_load_1; |
| let referrer_1_result = await referrer_1; |
| |
| // 2. Change the referrer policy of the main document. |
| document.getElementsByTagName('meta')[0].content = "unsafe-url"; |
| |
| // 3. Navigate the iframe elsewhere. |
| let iframe_load_2 = iframeLoaded(iframe); |
| window.open('/referrer-policy', 'test_frame'); |
| await iframe_load_2; |
| |
| // 4. Navigate the iframe back. |
| let iframe_load_3 = iframeLoaded(iframe); |
| let referrer_2 = reportedReferrer(); |
| iframe.contentWindow.history.back(); |
| await iframe_load_3; |
| |
| // Despite the main document has changed its referrer policy in (2), the |
| // reported referrer for the history navigation to about:srcdoc in (4) must |
| // match with the one originally reported in (1). |
| assert_equals(referrer_1_result, undefined, |
| "First navigation uses correct policy."); |
| assert_equals(await referrer_2, undefined, |
| "History navigation reuses original policy."); |
| }, "History navigation reuses original policy."); |
| |
| promise_test(async t => { |
| // If we initiate a new about:srcdoc navigation, the new referrer policy |
| // should apply. |
| const new_iframe = document.createElement("iframe"); |
| let new_iframe_load = iframeLoaded(new_iframe); |
| let new_iframe_referrer = reportedReferrer(); |
| new_iframe.srcdoc = createScriptString(get_host_info().REMOTE_ORIGIN, |
| location.origin + "/custom"); |
| document.body.appendChild(new_iframe); |
| await new_iframe_load; |
| |
| assert_equals(await new_iframe_referrer, self.origin + '/custom'); |
| }, "New srcdoc iframe uses new policy."); |
| </script> |