revert: proxy param

README.md

@@ -31,14 +31,13 @@ Fork of Moe Counter for fast global access powered by Cloudflare Workers.
 
 ```
 https://count.dsrkafuu.net/{id}
-https://count.dsrkafuu.net/{id}?theme={asoul,gelbooru,moebooru,rule34}&length={1-10,auto}&add={0,1}&proxy={0,1}
+https://count.dsrkafuu.net/{id}?theme={asoul,gelbooru,moebooru,rule34}&length={1-10,auto}&add={0,1}
 ```
 
 1. `{id}`: Any custom string between 1-256 chars (`a-zA-Z0-9:.@_-` allowed)
 2. `{&theme}`: `asoul`, `gelbooru`, `moebooru`, `rule34` and two other themes (default: `gelbooru`)
 3. `{&length}`: Number between `1-10` (default: `7`) or string `auto`
 4. `{&add}`: Controls whether make the counter count or not (default: `1`)
-5. `{&proxy}`: Should be used when showing images through proxies which break `no-cache` behavior, e.g. GitHub's image proxy, **DO NOT** use it when showing the counter directly in your website (default: `0`)
 
 Recommend to use `user:usage` like string as ID for better management and potential issue tracking.
 

src/routes/image.js

@@ -42,7 +42,7 @@ function genImage(count, theme, length) {
  */
 export async function get(req, event) {
   const id = validateID(req.params.id);
-  let { theme, length, add, proxy } = req.query;
+  let { theme, length, add } = req.query;
   if (!themes[theme]) {
     theme = 'gelbooru';
   }
@@ -63,15 +63,10 @@ export async function get(req, event) {
     image = genImage(count, theme, _length);
   }
 
-  const headers = {
-    'Content-Type': 'image/svg+xml; charset=utf-8',
-  };
-  // make sure image refreshes after some url proxys like GitHub's Camo
-  if (proxy === '1') {
-    headers['Cache-Control'] = 'max-age=0, no-cache, no-store, must-revalidate';
-  }
   return await genResponse(req, image, {
     status: 200,
-    headers,
+    headers: {
+      'Content-Type': 'image/svg+xml; charset=utf-8',
+    },
   });
 }