javascript - Angularjs Rails-起源 http ://localhost:9000 is not allowed by Access-Control-Allow-Origin.

Question

我刚刚开始使用 angularjs，并且使用 Rails 作为后端 api。我已经成功设置了 Angular rails 资源( https://github.com/FineLinePrototyping/angularjs-rails-resource )和机架 Cors 以从 rails 获取数据。当我尝试保存节日时，出现以下错误:

XMLHttpRequest cannot load http://localhost:3000/festivals. Origin http://localhost:9000 is not allowed by Access-Control-Allow-Origin. 

这是我的代码，

应用程序/脚本/指令/festival_form.coffee

'use strict'

angular.module('MFNApp')
  .directive 'festivalForm', ->
    return {
      compile: (scope, element, attributes) ->
        console.log 'compile'

      link: (scope, element, attributes) ->
        console.log 'link'

      controller: ($scope, Festival) ->
        $scope.newFestival = new Festival
        console.log $scope.newFestival

        $scope.save = ->
          $scope.newFestival.save().then(
            (festival) ->
              console.log 'success'
              # $scope.festivalForm.$setPristine()
              # $scope.newFestival.$dirty = false
            ,
            (response) ->
              console.log 'failure'
              # $scope.festivalForm.$setValidity(false)
              # angular.forEach response.data, (value, key) ->
              #   $scope.festivalForm.$error[key] = value[0]
          )

    }

这是使用 Angular 轨资源的节日工厂

应用程序/脚本/服务/Festival.coffee

'use strict'

angular.module('MFNApp')
  .factory 'Festival', (railsResourceFactory) ->
    railsResourceFactory
      url: 'http://localhost:3000/festivals', 
      name: 'festival'

这是 View

app/views/fesitvals/new.html

<div festival-form>
  <form>
    <fieldset>
      <legend>Festival Information</legend>

      <div class="row">
        <div class="large-12 columns">
          <label>Festival Name</label>
          <input ng-model='newFestival.name' type="text" placeholder="Name of your festival...">
        </div>
      </div>

      <div class="row">
        <div class="large-12 columns">
          <label>Description</label>
          <input ng-model='newFestival.description' type="text" placeholder="About your festival...">
        </div>
      </div>

      <button ng-click='save()'>Save</button>


    </fieldset>
  </form>

</div>

Answer 1

您必须允许 Web API 接受来自该域 (http://localhost:9000) 的请求，或者您可以按照此处所述 Allow anything through CORS Policy 为所有域打开它。