From 6ffd2c5d54bdebb523b820e372beebe1a5b31d2e Mon Sep 17 00:00:00 2001
From: "Tech. TTGames" <50541739+Tech-TTGames@users.noreply.github.com>
Date: Thu, 27 Aug 2026 17:53:43 +0300
Subject: [PATCH 1/3] Set TypeScript target to ES2022 and configure Terser for
 modern syntax minification to avoid downgrading

---
 frontend/tsconfig.json  | 1 +
 frontend/vite.config.ts | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/frontend/tsconfig.json b/frontend/tsconfig.json
index 3575c101..0eee2a26 100644
--- a/frontend/tsconfig.json
+++ b/frontend/tsconfig.json
@@ -7,6 +7,7 @@
     },
     "strict": true,
     "skipLibCheck": true,
+    "target": "ES2022",
     "module": "ESNext",
     "moduleResolution": "bundler",
     "allowImportingTsExtensions": true,
diff --git a/frontend/vite.config.ts b/frontend/vite.config.ts
index 55071fba..7b6198a2 100644
--- a/frontend/vite.config.ts
+++ b/frontend/vite.config.ts
@@ -114,6 +114,9 @@ export default defineConfig(({ mode }) => {
       },
       target: "es2022",
       minify: "terser",
+      terserOptions: {
+        ecma: 2022, // Retains modern ES syntax during minification
+      },
       sourcemap: false,
     },
   };

From 1df86bef85615142579d6dad8145083e357b1e7c Mon Sep 17 00:00:00 2001
From: "Tech. TTGames" <50541739+Tech-TTGames@users.noreply.github.com>
Date: Thu, 27 Aug 2026 17:56:15 +0300
Subject: [PATCH 2/3] Add default security and cache headers for all routes

---
 frontend/public/_headers | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 frontend/public/_headers

diff --git a/frontend/public/_headers b/frontend/public/_headers
new file mode 100644
index 00000000..43034f4c
--- /dev/null
+++ b/frontend/public/_headers
@@ -0,0 +1,16 @@
+# Default security and cache headers for all routes
+/*
+  X-Frame-Options: DENY
+  X-Content-Type-Options: nosniff
+  Referrer-Policy: strict-origin-when-cross-origin
+  Permissions-Policy: camera=(), microphone=(), geolocation=()
+  Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
+  Cache-Control: public, max-age=0, must-revalidate
+
+# Immutable 1-year cache for Vite hashed production bundle assets
+/assets/*
+  Cache-Control: public, max-age=31536000, immutable
+
+# Prevent stale HTML caching so new deployments hit users immediately
+/index.html
+  Cache-Control: public, max-age=0, must-revalidate
\ No newline at end of file

From 0cd12a1166a1966bef437f4441ced9c9b2864f2b Mon Sep 17 00:00:00 2001
From: biast12 <53872542+biast12@users.noreply.github.com>
Date: Sun, 18 Oct 2026 21:50:00 +0200
Subject: [PATCH 3/3] Adjust frontend deployment headers and targets

Refines security and caching headers, adds an assets-only 404 page to preserve SPA fallback behavior, and aligns TypeScript and Terser output with ES2020 compatibility.
---
 frontend/public/_headers        | 9 +--------
 frontend/public/assets/404.html | 3 +++
 frontend/tsconfig.json          | 1 -
 frontend/vite.config.ts         | 2 +-
 4 files changed, 5 insertions(+), 10 deletions(-)
 create mode 100644 frontend/public/assets/404.html

diff --git a/frontend/public/_headers b/frontend/public/_headers
index 43034f4c..ec46c8e6 100644
--- a/frontend/public/_headers
+++ b/frontend/public/_headers
@@ -1,16 +1,9 @@
-# Default security and cache headers for all routes
 /*
   X-Frame-Options: DENY
   X-Content-Type-Options: nosniff
   Referrer-Policy: strict-origin-when-cross-origin
   Permissions-Policy: camera=(), microphone=(), geolocation=()
-  Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
-  Cache-Control: public, max-age=0, must-revalidate
+  Strict-Transport-Security: max-age=31536000; includeSubDomains
 
-# Immutable 1-year cache for Vite hashed production bundle assets
 /assets/*
   Cache-Control: public, max-age=31536000, immutable
-
-# Prevent stale HTML caching so new deployments hit users immediately
-/index.html
-  Cache-Control: public, max-age=0, must-revalidate
\ No newline at end of file
diff --git a/frontend/public/assets/404.html b/frontend/public/assets/404.html
new file mode 100644
index 00000000..316ff066
--- /dev/null
+++ b/frontend/public/assets/404.html
@@ -0,0 +1,3 @@
+<!doctype html>
+<!-- In assets/ so only missing assets 404; a root 404.html disables SPA fallback -->
+<title>Not found</title>
diff --git a/frontend/tsconfig.json b/frontend/tsconfig.json
index 0eee2a26..3575c101 100644
--- a/frontend/tsconfig.json
+++ b/frontend/tsconfig.json
@@ -7,7 +7,6 @@
     },
     "strict": true,
     "skipLibCheck": true,
-    "target": "ES2022",
     "module": "ESNext",
     "moduleResolution": "bundler",
     "allowImportingTsExtensions": true,
diff --git a/frontend/vite.config.ts b/frontend/vite.config.ts
index 7b6198a2..91cd8ea0 100644
--- a/frontend/vite.config.ts
+++ b/frontend/vite.config.ts
@@ -115,7 +115,7 @@ export default defineConfig(({ mode }) => {
       target: "es2022",
       minify: "terser",
       terserOptions: {
-        ecma: 2022, // Retains modern ES syntax during minification
+        ecma: 2020,
       },
       sourcemap: false,
     },