正在开发中但在生产中显示的JSON数据未正确显示

这是我的routes.rb

namespace :api do
    get 'suggestions/jobs', to: "suggestions#jobs"
end

我的控制器

class Api::SuggestionsController 

和模型

def self.job_title_search(q)
    where('title LIKE ?', "%#{q}%").select(:title, :label).distinct
end


在开发环境中就像localhost:3000/api/suggestions/jobs?q=dev数据样本一样

[
    {"id":null,"title":"React Native Developer","label":"Top label job"},
    {"id":null,"title":"Android Developer","label":"Top label job"},
    {"id":null,"title":"Business Development Representative","label":"Mid label job"},
    {"id":null,"title":"Node.js Developer","label":"Top label job"}
]


这意味着它正在工作,但是当我推进Heroku时,就像example.herokuapp.com/api/suggestions/jobs?q=dev它正在显示


  
SyntaxError:JSON.parse:JSON数据的第1行第1列的意外字符


我知道代码是"Not Found" 

render json: "Not Found", status: :ok


我的问题是为什么相同的代码不适用于Heroku？我能为此做些什么？

database.yml

# SQLite version 3.x
#   gem install sqlite3
#
#   Ensure the SQLite 3 gem is defined in your Gemfile
#   gem 'sqlite3'
#
default: &default
  adapter: sqlite3
  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
  timeout: 5000

development:
  <<: *default
  database: db/development.sqlite3

# Warning: The database defined as "test" will be erased and
# re-generated from your development database when you run "rake".
# Do not set this db to the same as development or production.
test:
  <<: *default
  database: db/test.sqlite3

production:
  <<: *default
  database: my_project_production
  username: my_project
  password: <%= ENV['MY_PROJECT_DATABASE_PASSWORD'] %>


任何帮助appriciated.

谢谢


1> Aleksei Mati..：
if代码的分支很好,并且由于dev包含记录,所以它的呈现没有任何故障.

在prodOTOH中,没有记录else,并且尝试渲染不太正确的分支.它失败了,给你错误.

请改为提供哈希:

else
  render json: {error: "Not Found"}, status: :ok
end

        
@engineersmnky**O**n**T**他**********,但我更喜欢你的解释.