FrozenError: can't modify frozen String
https://sentry.gitlab.net/gitlab/gitlabcom/issues/773529/
FrozenError: can't modify frozen String
(eval):107:in `block (3 levels) in draw_route'
action_dispatch/routing/redirection.rb:53:in `path'
block.call params, request
action_dispatch/routing/redirection.rb:25:in `serve'
uri = URI.parse(path(req.path_parameters, req))
action_dispatch/routing/redirection.rb:21:in `call'
serve Request.new env
action_dispatch/routing/mapper.rb:17:in `block in <class:Constraints>'
CALL = ->(app, req) { app.call req.env }
...
(84 additional frame(s) were not displayed)
FrozenError: can't modify frozen String