1 files changed, 43 insertions, 0 deletions
diff --git a/toolkit/components/extensions/test/xpcshell/test_ext_contentscript_in_background.js b/toolkit/components/extensions/test/xpcshell/test_ext_contentscript_in_background.js
new file mode 100644
index 0000000000..e813b46ca0
--- /dev/null
+++ b/toolkit/components/extensions/test/xpcshell/test_ext_contentscript_in_background.js
@@ -0,0 +1,43 @@
+/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* vim: set sts=2 sw=2 et tw=80: */
+"use strict";
+
+const server = createHttpServer({ hosts: ["example.com"] });
+server.registerPathHandler("/dummyFrame", (request, response) => {
+  response.setStatusLine(request.httpVersion, 200, "OK");
+  response.setHeader("Content-Type", "text/html; charset=utf-8", false);
+  response.write("");
+});
+
+add_task(async function content_script_in_background_frame() {
+  async function background() {
+    const FRAME_URL = "http://example.com:8888/dummyFrame";
+    await browser.contentScripts.register({
+      matches: ["http://example.com/dummyFrame"],
+      js: [{ file: "contentscript.js" }],
+      allFrames: true,
+    });
+
+    let f = document.createElement("iframe");
+    f.src = FRAME_URL;
+    document.body.appendChild(f);
+  }
+
+  function contentScript() {
+    browser.test.log(`Running content script at ${document.URL}`);
+    browser.test.sendMessage("done_in_content_script");
+  }
+
+  let extension = ExtensionTestUtils.loadExtension({
+    manifest: {
+      permissions: ["http://example.com/*"],
+    },
+    files: {
+      "contentscript.js": contentScript,
+    },
+    background,
+  });
+  await extension.startup();
+  await extension.awaitMessage("done_in_content_script");
+  await extension.unload();
+});