Add cache headers to demo and cast (#3982)

* Add cache headers to demo and cast

* Demo only to copy static from frontend public folder

* Update headers

* Update demo headers

* Update cast headers

* Update _headers

* Update _headers

build-scripts/gulp/gather-static.js

@@ -104,7 +104,10 @@ gulp.task("compress-static", () => compressStatic(paths.static));
 
 gulp.task("copy-static-demo", (done) => {
   // Copy app static files
-  fs.copySync(polyPath("public"), paths.demo_root);
+  fs.copySync(
+    polyPath("public/static"),
+    path.resolve(paths.demo_root, "static")
+  );
   // Copy demo static files
   fs.copySync(path.resolve(paths.demo_dir, "public"), paths.demo_root);
 

cast/public/_headers

@@ -0,0 +1,20 @@
+/*
+  Cache-Control: public, max-age: 0, s-maxage=3600, must-revalidate
+  Content-Security-Policy: form-action https:
+  Feature-Policy: vibrate 'none'; geolocation 'none'; midi 'none'; microphone 'none'; camera 'none'; magnetometer 'none'; gyroscope 'none'; speaker 'none'; vibrate 'none'; payment 'none'
+  Referrer-Policy: no-referrer-when-downgrade
+  X-Content-Type-Options: nosniff
+  X-Frame-Options: DENY
+  X-XSS-Protection: 1; mode=block
+
+/images/*
+  Cache-Control: public, max-age: 604800, s-maxage=604800
+
+/manifest.json
+  Cache-Control: public, max-age: 3600, s-maxage=3600
+
+/frontend_es5/*
+  Cache-Control: public, max-age: 604800, s-maxage=604800
+
+/frontend_latest/*
+  Cache-Control: public, max-age: 604800, s-maxage=604800

demo/public/_headers

@@ -0,0 +1,18 @@
+/*
+  Cache-Control: public, max-age: 0, s-maxage=3600, must-revalidate
+  Content-Security-Policy: form-action https:
+  Referrer-Policy: no-referrer-when-downgrade
+  X-Content-Type-Options: nosniff
+  X-XSS-Protection: 1; mode=block
+
+/api/*
+  Cache-Control: public, max-age: 604800, s-maxage=604800
+
+/assets/*
+  Cache-Control: public, max-age: 604800, s-maxage=604800
+
+/frontend_es5/*
+  Cache-Control: public, max-age: 604800, s-maxage=604800
+
+/frontend_latest/*
+  Cache-Control: public, max-age: 604800, s-maxage=604800