diff --git a/README.md b/README.md
index 9b5dd95..8f0c2d4 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,10 @@ then it will listen on port 8383. Then you can make requests like:
 
 `http://localhost:8383/?url=https://duckduckgo.com`
 
+To primitively rewrite relative hrefs to absolute ones:
+
+`http://localhost:8383/?url=https://duckduckgo.com?rewrite=1`
+
 ## Install as a daemon
 
 ```
diff --git a/index.mjs b/index.mjs
index c7ccce4..0a0a1cd 100755
--- a/index.mjs
+++ b/index.mjs
@@ -6,9 +6,16 @@ import axios from "axios";
 
 const router = new Router();
 
+const href_regex = /href="\/"/g;
+
 router.get("/", async (ctx) => {
   const url = ctx.query.url;
+  const rewrite = ctx.query.url;
   const response = await axios.get(url);
+  if (response.data.replace && rewrite) {
+    const origin = new URL(url).origin;
+    response.data = response.data.replace(href_regex, `href="${origin}/`);
+  }
   ctx.body = response.data;
 });