1 files changed, 130 insertions, 0 deletions
diff --git a/dom/html/test/browser_containerLoadingContent.js b/dom/html/test/browser_containerLoadingContent.js
new file mode 100644
index 0000000000..c0b52ffe8a
--- /dev/null
+++ b/dom/html/test/browser_containerLoadingContent.js
@@ -0,0 +1,130 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const syntheticBrowsingContexts = SpecialPowers.getBoolPref(
+  "browser.opaqueResponseBlocking.syntheticBrowsingContext",
+  false
+);
+
+const DIRPATH = getRootDirectory(gTestPath).replace(
+  "chrome://mochitests/content/",
+  ""
+);
+
+const ORIGIN = "https://example.com";
+const CROSSORIGIN = "https://example.org";
+
+const TABURL = `${ORIGIN}/${DIRPATH}dummy_page.html`;
+
+const IMAGEURL = `${ORIGIN}/${DIRPATH}image.png`;
+const CROSSIMAGEURL = `${CROSSORIGIN}/${DIRPATH}image.png`;
+
+const DOCUMENTURL = `${ORIGIN}/${DIRPATH}dummy_page.html`;
+const CROSSDOCUMENTURL = `${CROSSORIGIN}/${DIRPATH}dummy_page.html`;
+
+async function createElements({ element, attribute }, url1, url2) {
+  for (let url of [url1, url2]) {
+    const object = content.document.createElement(element);
+    object[attribute] = url;
+    const onloadPromise = new Promise(res => {
+      object.onload = res;
+    });
+    content.document.body.appendChild(object);
+    await onloadPromise;
+    return object;
+  }
+}
+
+function getPids(browser) {
+  return browser.browsingContext.children.map(
+    child => child.currentWindowContext.osPid
+  );
+}
+
+async function runTest(spec, tabUrl, imageurl, crossimageurl, check) {
+  await BrowserTestUtils.withNewTab(tabUrl, async browser => {
+    await SpecialPowers.spawn(
+      browser,
+      [spec, imageurl, crossimageurl],
+      async ({ element, attribute }, url1, url2) => {
+        for (let url of [url1, url2]) {
+          const object = content.document.createElement(element);
+          object[attribute] = url;
+          const onloadPromise = new Promise(res => {
+            object.onload = res;
+          });
+          content.document.body.appendChild(object);
+          await onloadPromise;
+        }
+      }
+    );
+
+    await check(browser);
+  });
+}
+
+let iframe = { element: "iframe", attribute: "src" };
+let embed = { element: "embed", attribute: "src" };
+let object = { element: "object", attribute: "data" };
+
+async function checkImage(browser) {
+  let pids = getPids(browser);
+  is(pids.length, 2, "There should be two browsing contexts");
+  ok(pids[0], "The first pid should have a sane value");
+  ok(pids[1], "The second pid should have a sane value");
+  isnot(pids[0], pids[1], "The two pids should be different");
+
+  let images = [];
+  for (let context of browser.browsingContext.children) {
+    images.push(
+      await SpecialPowers.spawn(context, [], async () => {
+        let img = new URL(content.document.querySelector("img").src);
+        is(
+          `${img.protocol}//${img.host}`,
+          `${content.location.protocol}//${content.location.host}`,
+          "Images should be loaded in the same domain as the document"
+        );
+        return img.href;
+      })
+    );
+  }
+  isnot(images[0], images[1], "The images should have different sources");
+}
+
+function checkDocument(browser) {
+  let pids = getPids(browser);
+  is(pids.length, 2, "There should be two browsing contexts");
+  ok(pids[0], "The first pid should have a sane value");
+  ok(pids[1], "The second pid should have a sane value");
+  isnot(pids[0], pids[1], "The two pids should be different");
+}
+
+add_task(async function test_iframeImageDocument() {
+  await runTest(iframe, TABURL, IMAGEURL, CROSSIMAGEURL, checkImage);
+});
+
+if (syntheticBrowsingContexts) {
+  add_task(async function test_embedImageDocument() {
+    await runTest(embed, TABURL, IMAGEURL, CROSSIMAGEURL, checkImage);
+  });
+
+  add_task(async function test_objectImageDocument() {
+    await runTest(object, TABURL, IMAGEURL, CROSSIMAGEURL, checkImage);
+  });
+}
+
+add_task(async function test_iframeDocument() {
+  await runTest(iframe, TABURL, DOCUMENTURL, CROSSDOCUMENTURL, checkDocument);
+});
+
+if (syntheticBrowsingContexts) {
+  add_task(async function test_embedDocument() {
+    await runTest(embed, TABURL, DOCUMENTURL, CROSSDOCUMENTURL, checkDocument);
+  });
+
+  add_task(async function test_objectDocument() {
+    await runTest(object, TABURL, DOCUMENTURL, CROSSDOCUMENTURL, checkDocument);
+  });
+}