1 files changed, 62 insertions, 0 deletions
diff --git a/browser/base/content/test/favicons/browser_favicon_referer.js b/browser/base/content/test/favicons/browser_favicon_referer.js
new file mode 100644
index 0000000000..ad1cb5d9b1
--- /dev/null
+++ b/browser/base/content/test/favicons/browser_favicon_referer.js
@@ -0,0 +1,62 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const FOLDER = getRootDirectory(gTestPath).replace(
+  "chrome://mochitests/content/",
+  "http://mochi.test:8888/"
+);
+
+add_task(async function test_check_referrer_for_discovered_favicon() {
+  await BrowserTestUtils.withNewTab(
+    { gBrowser, url: "about:blank" },
+    async browser => {
+      let referrerPromise = TestUtils.topicObserved(
+        "http-on-modify-request",
+        (s, t, d) => {
+          let chan = s.QueryInterface(Ci.nsIHttpChannel);
+          return chan.URI.spec == "http://mochi.test:8888/favicon.ico";
+        }
+      ).then(([chan]) => chan.getRequestHeader("Referer"));
+
+      BrowserTestUtils.loadURIString(browser, `${FOLDER}discovery.html`);
+
+      let referrer = await referrerPromise;
+      is(
+        referrer,
+        `${FOLDER}discovery.html`,
+        "Should have sent referrer for autodiscovered favicon."
+      );
+    }
+  );
+});
+
+add_task(
+  async function test_check_referrer_for_referrerpolicy_explicit_favicon() {
+    await BrowserTestUtils.withNewTab(
+      { gBrowser, url: "about:blank" },
+      async browser => {
+        let referrerPromise = TestUtils.topicObserved(
+          "http-on-modify-request",
+          (s, t, d) => {
+            let chan = s.QueryInterface(Ci.nsIHttpChannel);
+            return chan.URI.spec == `${FOLDER}file_favicon.png`;
+          }
+        ).then(([chan]) => chan.getRequestHeader("Referer"));
+
+        BrowserTestUtils.loadURIString(
+          browser,
+          `${FOLDER}file_favicon_no_referrer.html`
+        );
+
+        let referrer = await referrerPromise;
+        is(
+          referrer,
+          "http://mochi.test:8888/",
+          "Should have sent the origin referrer only due to the per-link referrer policy specified."
+        );
+      }
+    );
+  }
+);