When we redirect due to invalid encoding, we need to ensure that the URL generation is correct. Here it appears to fail due to a missing `id`. Hypothesis: the page is `nil`. https://sentry.gitlab.net/gitlab/gitlabcom/issues/1624183/?referrer=gitlab_plugin ``` ActionController::UrlGenerationError: No route matches {:action=>"show", :controller=>"projects/wikis", :id=>nil, :namespace_id=>#<Group id:1082928 @lock3>, :project_id=>#<Project id:16236008 lock3/clang-cppx>>}, possible unmatched constraints: [:id] action_dispatch/journey/formatter.rb:57:in `generate' raise ActionController::UrlGenerationError, message action_dispatch/routing/route_set.rb:738:in `generate' @set.formatter.generate(named_route, options, recall, PARAMETERIZE) action_dispatch/routing/route_set.rb:769:in `generate' Generator.new(route_key, options, recall, self).generate action_dispatch/routing/route_set.rb:816:in `url_for' path, params = generate(route_name, path_options, recall) action_dispatch/routing/route_set.rb:269:in `call' t._routes.url_for(hash, route_name, url_strategy) ... (148 additional frame(s) were not displayed) ActionController::UrlGenerationError: No route matches {:action=>"show", :controller=>"projects/wikis", :id=>nil, :namespace_id=>#<Group id:1082928 @lock3>, :project_id=>#<Project id:16236008 lock3/clang-cppx>>}, possible unmatched constraints: [:id] ``` --- ## Testing Activity @.luke * Controller Test ## MR Breakdown https://gitlab.com/gitlab-org/gitlab/-/issues/219110#note_354111289