diff --git a/x/examples/smart-proxy/config_broken.json b/x/examples/smart-proxy/config_broken.json
new file mode 100644
index 00000000..55a7c7ec
--- /dev/null
+++ b/x/examples/smart-proxy/config_broken.json
@@ -0,0 +1,18 @@
+{
+    "dns": [
+        {"udp": {"address": "china.cn"}},
+        {"udp": {"address": "ns1.tic.ir"}},
+        {"tcp": {"address": "ns1.tic.ir"}},
+        {"udp": {"address": "tmcell.tm"}},
+        {"tls": {"name": "captive-portal.badssl.com", "address": "captive-portal.badssl.com:443"}},
+        {"https": {"name": "mitm-software.badssl.com"}}
+    ],
+
+    "tls": [
+        "",
+        "split:1",
+        "split:2",
+        "split:5",
+        "tlsfrag:1"
+    ]
+}