1 files changed, 26 insertions, 0 deletions
diff --git a/devtools/client/webconsole/test/browser/browser_jsterm_error_outside_valid_range.js b/devtools/client/webconsole/test/browser/browser_jsterm_error_outside_valid_range.js
new file mode 100644
index 0000000000..46a0d74529
--- /dev/null
+++ b/devtools/client/webconsole/test/browser/browser_jsterm_error_outside_valid_range.js
@@ -0,0 +1,26 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Ensure that dom errors, with error numbers outside of the range
+// of valid js.msg errors, don't cause crashes (See Bug 1270721).
+
+const TEST_URI = "data:text/html,<!DOCTYPE html>Test error documentation";
+
+add_task(async function () {
+  const hud = await openNewTabAndConsole(TEST_URI);
+
+  const text =
+    "TypeError: Request constructor: 'foo' (value of 'redirect' member of RequestInit) is not a valid value " +
+    "for enumeration RequestRedirect";
+  await executeAndWaitForErrorMessage(
+    hud,
+    "new Request('',{redirect:'foo'})",
+    text
+  );
+  ok(
+    true,
+    "Error message displayed as expected, without crashing the console."
+  );
+});