diff --git a/asset_server/index.js b/asset_server/index.js
index 19300db..d049f69 100644
--- a/asset_server/index.js
+++ b/asset_server/index.js
@@ -19,11 +19,9 @@ app.get('/*', function (req, res) {
     createDirFromFile(expectedPath);
     let downloading = [];
     if (fs.existsSync(expectedPath)) {
-        const fileStream = fs.createReadStream(expectedPath);
-        res.writeHead(200);
-        fileStream.pipe(res);
+        res.sendFile(expectedPath)
     } else {
-        let url = (!req.url.toLowerCase().startsWith("android") ? "https://img-sif2.lovelive-sif2.com" : "https://album-sif2.lovelive-sif2.com") + req.url;
+        let url = (req.url.toLowerCase().startsWith("/android") || req.url.toLowerCase().startsWith("/ios") ? "https://lovelive-schoolidolfestival2-assets.akamaized.net" : "https://lovelive-schoolidolfestival2-album.akamaized.net") + req.url;
         const request = require('https').get(url, function(response) {
            response.pipe(res);
         });