1 files changed, 14 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/bug-1707422.js b/js/src/jit-test/tests/basic/bug-1707422.js
new file mode 100644
index 0000000000..fa46c69735
--- /dev/null
+++ b/js/src/jit-test/tests/basic/bug-1707422.js
@@ -0,0 +1,14 @@
+x = "a";
+x += +"a";
+x += +"a";
+x += x;
+x += x;
+var s = x;
+x += 0;
+y = x += 0;
+y += x += "a";
+for (let i = 0; i < 12; ++i) {
+    try {
+        this();
+    } catch {}
+}