```ruby
# This file is used by Rack-based servers to start the application.

require ::File.expand_path('../config/environment',  __FILE__)

# Let rack know if we're running relative to a subdirectory
Rails.application.config.relative_url_root || "/" do
  run Rails.application
end
```

Revert "Let rack know if we're running relative to a subdirectory"
user
```ruby
# This file is used by Rack-based servers to start the application.

require ::File.expand_path('../config/environment',  __FILE__)
run Rails.application
```
assistant