Unable to prepare route for serialization. Uses Closure.

[hbody]

I can't use artisan route:cache because of this package generates closure routes (with function).
Better will be to generate controller routes, because of with this package unable to fully optimize website.

[FreedomKnight]

It should generate routing path dynamically by its configures files.
We will try to let it can be optimized.

[youchenlee]

reference: laravel/framework#7319 (comment)

Agree with @hbody and @FreedomKnight , we should prevent closure routes since fileapi should be optimized for performance.

BTW, a nginx/apache alias or cache to the storage/app/images folder is recommended for the best performance optimization, the GET API is not necessary to go through PHP.
For example, in nginx, setup fastcgi_cache for it.

This should be mentioned in README.