Change how CDN_HOST is passed down to make assets build reproducible (#14381)

* Change how CDN_HOST is passed down to make assets build reproducible

* Change webpacker/webpack configuration to dynamically load publicPath based on meta header

* Fix embedded layout missing the cdn-host meta header

1 files changed, 2 insertions, 15 deletions

diff --git a/config/webpack/configuration.js b/config/webpack/configuration.js
index 80a094c72..e4f88a9c4 100644
--- a/config/webpack/configuration.js
+++ b/config/webpack/configuration.js
@@ -11,30 +11,17 @@ const settings = safeLoad(readFileSync(configPath), 'utf8')[env.RAILS_ENV || env
 const themePath = resolve('config', 'themes.yml');
 const themes = safeLoad(readFileSync(themePath), 'utf8');
 
-function removeOuterSlashes(string) {
-  return string.replace(/^\/*/, '').replace(/\/*$/, '');
-}
-
-function formatPublicPath(host = '', path = '') {
-  let formattedHost = removeOuterSlashes(host);
-  if (formattedHost && !/^http/i.test(formattedHost)) {
-    formattedHost = `//${formattedHost}`;
-  }
-  const formattedPath = removeOuterSlashes(path);
-  return `${formattedHost}/${formattedPath}/`;
-}
-
 const output = {
   path: resolve('public', settings.public_output_path),
-  publicPath: formatPublicPath(env.CDN_HOST, settings.public_output_path),
+  publicPath: `/${settings.public_output_path}/`,
 };
 
 module.exports = {
   settings,
   themes,
   env: {
-    CDN_HOST: env.CDN_HOST,
     NODE_ENV: env.NODE_ENV,
+    PUBLIC_OUTPUT_PATH: settings.public_output_path,
   },
   output,
 };