1 files changed, 132 insertions, 0 deletions
diff --git a/toolkit/components/reader/test/browser_bug1453818_samesite_cookie.js b/toolkit/components/reader/test/browser_bug1453818_samesite_cookie.js
new file mode 100644
index 0000000000..1fbfdeabfb
--- /dev/null
+++ b/toolkit/components/reader/test/browser_bug1453818_samesite_cookie.js
@@ -0,0 +1,132 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const TEST_ORIGIN1 = getRootDirectory(gTestPath).replace(
+  "chrome://mochitests/content",
+  "http://example.com"
+);
+const TEST_ORIGIN2 = getRootDirectory(gTestPath).replace(
+  "chrome://mochitests/content",
+  "http://example.org"
+);
+
+async function clickLink(browser) {
+  info("Waiting for the page to load after clicking the link...");
+  let pageLoaded = BrowserTestUtils.waitForContentEvent(
+    browser,
+    "DOMContentLoaded"
+  );
+  await SpecialPowers.spawn(browser, [], async function () {
+    let link = content.document.getElementById("link");
+    ok(link, "The link element was found.");
+    link.click();
+  });
+  await pageLoaded;
+}
+
+async function checkCookiePresent(browser) {
+  await SpecialPowers.spawn(browser, [], async function () {
+    let cookieSpan = content.document.getElementById("cookieSpan");
+    ok(cookieSpan, "cookieSpan element should be in document");
+    is(
+      cookieSpan.textContent,
+      "foo=bar",
+      "The SameSite cookie was sent correctly."
+    );
+  });
+}
+
+async function checkCookie(browser) {
+  info("Check that the SameSite cookie was not sent.");
+  await SpecialPowers.spawn(browser, [], async function () {
+    let cookieSpan = content.document.getElementById("cookieSpan");
+    ok(cookieSpan, "cookieSpan element should be in document");
+    is(
+      cookieSpan.textContent,
+      "",
+      "The SameSite cookie was blocked correctly."
+    );
+  });
+}
+
+async function runTest() {
+  await SpecialPowers.pushPrefEnv({
+    set: [["reader.parse-on-load.enabled", true]],
+  });
+
+  info("Set a SameSite=strict cookie.");
+  await BrowserTestUtils.withNewTab(
+    TEST_ORIGIN1 + "setSameSiteCookie.html",
+    () => {}
+  );
+
+  info("Check that the cookie has been correctly set.");
+  await BrowserTestUtils.withNewTab(
+    TEST_ORIGIN1 + "getCookies.sjs",
+    async function (browser) {
+      await checkCookiePresent(browser);
+    }
+  );
+
+  info(
+    "Open a cross-origin page with a link to the domain that set the cookie."
+  );
+  {
+    let browser;
+    let pageLoaded;
+    let tab = await BrowserTestUtils.openNewForegroundTab(
+      gBrowser,
+      () => {
+        let t = BrowserTestUtils.addTab(
+          gBrowser,
+          TEST_ORIGIN2 + "linkToGetCookies.html"
+        );
+        gBrowser.selectedTab = t;
+        browser = gBrowser.selectedBrowser;
+        pageLoaded = BrowserTestUtils.waitForContentEvent(
+          browser,
+          "DOMContentLoaded"
+        );
+        return t;
+      },
+      false
+    );
+
+    info("Waiting for the page to load in normal mode...");
+    await pageLoaded;
+
+    await clickLink(browser);
+    await checkCookie(browser);
+    await BrowserTestUtils.removeTab(tab);
+  }
+
+  info("Open the cross-origin page again.");
+  await BrowserTestUtils.withNewTab(
+    TEST_ORIGIN2 + "linkToGetCookies.html",
+    async function (browser) {
+      let pageShown = BrowserTestUtils.waitForContentEvent(
+        browser,
+        "AboutReaderContentReady"
+      );
+      let readerButton = document.getElementById("reader-mode-button");
+      ok(readerButton, "readerButton should be available");
+      readerButton.click();
+
+      info("Waiting for the page to be displayed in reader mode...");
+      await pageShown;
+
+      await clickLink(browser);
+      await checkCookie(browser);
+    }
+  );
+}
+
+add_task(async function () {
+  await runTest(true);
+});
+
+add_task(async function () {
+  await runTest(false);
+});