diff --git a/docs/extra/image.js b/docs/extra/image.js
new file mode 100644
index 0000000..d64ffc2
--- /dev/null
+++ b/docs/extra/image.js
@@ -0,0 +1,5 @@
+const images = document.querySelectorAll('img');
+
+for (const image of images) {
+  image.setAttribute('referrerpolicy', 'no-referrer');
+}
diff --git a/mkdocs.yml b/mkdocs.yml
index 4098503..9842fc6 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -132,3 +132,6 @@ nav:
     - 28-Node.js底层原理（架构篇）:  chapter28-Node.js底层原理（架构篇）.md
     - 29-Node.js底层原理（实现篇）:  chapter29-Node.js底层原理（实现篇）.md
   
+extra_javascript:
+  - path: extra/image.js
+    defer: true
\ No newline at end of file