diff --git a/accept-ext-mirroring.json.sapmle b/accept-ext-mirroring.json.sapmle
new file mode 100644
index 0000000..9f3c8be
--- /dev/null
+++ b/accept-ext-mirroring.json.sapmle
@@ -0,0 +1,18 @@
+{
+  "ext": [
+    "htm",
+    "html",
+    "aspx",
+    "cgi",
+    "php",
+    "css",
+    "js",
+    "json",
+    "jpg",
+    "jpeg",
+    "png",
+    "gif",
+    "webp",
+    "svg"
+  ]
+}