1 files changed, 31 insertions, 0 deletions
diff --git a/browser/extensions/formautofill/test/browser/browser_autofill_sandboxed_iframe.js b/browser/extensions/formautofill/test/browser/browser_autofill_sandboxed_iframe.js
new file mode 100644
index 0000000000..2963a06941
--- /dev/null
+++ b/browser/extensions/formautofill/test/browser/browser_autofill_sandboxed_iframe.js
@@ -0,0 +1,31 @@
+"use strict";
+
+add_setup(async function () {
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      ["extensions.formautofill.addresses.capture.enabled", true],
+      ["extensions.formautofill.addresses.supported", "on"],
+    ],
+  });
+  await setStorage(TEST_ADDRESS_2, TEST_ADDRESS_3);
+});
+
+add_task(async function test_autocomplete_in_sandboxed_iframe() {
+  await BrowserTestUtils.withNewTab(
+    { gBrowser, url: FORM_IFRAME_SANDBOXED_URL },
+    async browser => {
+      const iframeBC = browser.browsingContext.children[0];
+      await openPopupOnSubframe(browser, iframeBC, "#street-address");
+      await BrowserTestUtils.synthesizeKey("VK_DOWN", {}, iframeBC);
+      await BrowserTestUtils.synthesizeKey("VK_RETURN", {}, iframeBC);
+      await waitForAutofill(
+        iframeBC,
+        "#street-address",
+        TEST_ADDRESS_2["street-address"]
+      );
+      Assert.ok(true, "autocomplete works in sandboxed iframe");
+    }
+  );
+
+  await removeAllRecords();
+});