无法通过 Angularjs 中的templateUrl加载模版。

我正学习Angularjs，学习如何使用templateUrl来加载模板。

我有一个简单的指令：

var mainApp = angular.module("mainApp", []);
mainApp.directive("request", function() {
    return {
        restrict: "E",
        scope: {
            data: "@"
        },
        templateUrl: "te.html"
    }
})

我尝试像这样使用这个指令：

 

    
                    title
                    actions
                        
    

一旦打开页面，我就遇到了这个异常：

XMLHttpRequest cannot load file:///Users/chenguangli/Documents/workspace-web/ournotes/te.html. Origin null is not allowed by Access-Control-Allow-Origin.   default.html:0
Error: Failed to load template: te.html
    at Error ()
    at file:///Users/chenguangli/Documents/workspace-web/ournotes/js/angular.js:4503:17
    at file:///Users/chenguangli/Documents/workspace-web/ournotes/js/angular.js:8898:11
    at wrappedErrback (file:///Users/chenguangli/Documents/workspace-web/ournotes/js/angular.js:6806:57)
    at file:///Users/chenguangli/Documents/workspace-web/ournotes/js/angular.js:6882:53
    at Object.Scope.$eval (file:///Users/chenguangli/Documents/workspace-web/ournotes/js/angular.js:8011:28)
    at Object.Scope.$digest (file:///Users/chenguangli/Documents/workspace-web/ournotes/js/angular.js:7876:25)
    at Object.Scope.$apply (file:///Users/chenguangli/Documents/workspace-web/ournotes/js/angular.js:8097:24)
    at done (file:///Users/chenguangli/Documents/workspace-web/ournotes/js/angular.js:9111:20)
    at completeRequest (file:///Users/chenguangli/Documents/workspace-web/ournotes/js/angular.js:9274:7)    js/angular.js:5704
    js/angular.js:5704
    js/angular.js:4800
  wrappedErrback    js/angular.js:6808
    js/angular.js:6882
  Scope.$eval   js/angular.js:8011
  Scope.$digest js/angular.js:7876
  Scope.$apply  js/angular.js:8097
  done  js/angular.js:9111
  completeRequest   js/angular.js:9274
  xhr.onreadystatechange    js/angular.js:9244

我肯定没有尝试跨域加载模板文件（te.html与default.html在同一个文件夹中）。

是否有人能帮我弄清楚其中的问题？