diff --git a/_data/origin/basic.yml b/_data/origin/basic.yml
new file mode 100644
index 0000000..3832945
--- /dev/null
+++ b/_data/origin/basic.yml
@@ -0,0 +1,2 @@
+mathjax:
+  js: https://cdn.jsdelivr.net/npm/mathjax@3.2.2/es5/tex-svg.js
diff --git a/_data/origin/cors.yml b/_data/origin/cors.yml
new file mode 100644
index 0000000..3832945
--- /dev/null
+++ b/_data/origin/cors.yml
@@ -0,0 +1,2 @@
+mathjax:
+  js: https://cdn.jsdelivr.net/npm/mathjax@3.2.2/es5/tex-svg.js