index.js: Read AllowedDevOrigins from dev,js into ALLOWED_DEV_ORIGINS env var

index.js

@@ -31,6 +31,11 @@ if (isDev || options['prod-with-dev-env']) {
   if (devEnv.AllowIframe) process.env.ALLOW_IFRAME = '1'
   if (devEnv.BackupPath) process.env.BACKUP_PATH = devEnv.BackupPath
   if (devEnv.ReactClientPath) process.env.REACT_CLIENT_PATH = devEnv.ReactClientPath
+  if (devEnv.AllowedDevOrigins) {
+    process.env.ALLOWED_DEV_ORIGINS = Array.isArray(devEnv.AllowedDevOrigins)
+      ? devEnv.AllowedDevOrigins.join(',')
+      : String(devEnv.AllowedDevOrigins)
+  }
   process.env.SOURCE = 'local'
   process.env.ROUTER_BASE_PATH = devEnv.RouterBasePath ?? '/audiobookshelf'
 }