1 files changed, 8 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/regexp/bug1786012.js b/js/src/jit-test/tests/regexp/bug1786012.js
new file mode 100644
index 0000000000..f806fd22bb
--- /dev/null
+++ b/js/src/jit-test/tests/regexp/bug1786012.js
@@ -0,0 +1,8 @@
+var repeated = "A".repeat(65536);
+var src = "^(?:" + repeated + ")\$";
+
+for (var i = 0; i < 100; i++) {
+  try {
+    RegExp(src).test();
+  } catch {}
+}