1 files changed, 26 insertions, 0 deletions
diff --git a/devtools/client/webconsole/test/browser/browser_webconsole_non_javascript_mime_worker_error.js b/devtools/client/webconsole/test/browser/browser_webconsole_non_javascript_mime_worker_error.js
new file mode 100644
index 0000000000..1e0e031b80
--- /dev/null
+++ b/devtools/client/webconsole/test/browser/browser_webconsole_non_javascript_mime_worker_error.js
@@ -0,0 +1,26 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Tests that importScripts loads inside a worker with a non-JavaScript
+// MIME types produce an error and fail.
+// See Bug 1514680.
+// Also tests that `new Worker` with a non-JS MIME type fails. (Bug 1523706)
+
+"use strict";
+
+const TEST_URI =
+  "https://example.com/browser/devtools/client/webconsole/" +
+  "test/browser/" +
+  "test-non-javascript-mime-worker.html";
+
+const JS_URI =
+  "https://example.com/browser/devtools/client/webconsole/test/browser/test-non-javascript-mime.js";
+const MIME_ERROR_MSG1 = `Loading Worker from “${JS_URI}” was blocked because of a disallowed MIME type (“text/plain”).`;
+const MIME_ERROR_MSG2 = `Loading script from “${JS_URI}” with importScripts() was blocked because of a disallowed MIME type (“text/plain”).`;
+
+add_task(async function () {
+  const hud = await openNewTabAndConsole(TEST_URI);
+  await waitFor(() => findErrorMessage(hud, MIME_ERROR_MSG1), "", 100);
+  await waitFor(() => findErrorMessage(hud, MIME_ERROR_MSG2), "", 100);
+  ok(true, "MIME type error displayed");
+});