完整异常信息如下：
Error: [$sce:unsafe] Attempting to use an unsafe value in a safe context.
http://errors.angularjs.org/1.3.15/$sce/unsafe
at REGEX_STRING_REGEXP (http://localhost:63342/angular_train/static/js/angular-1.3.15/angular.js:63:12)
at htmlSanitizer (http://localhost:63342/angular_train/static/js/angular-1.3.15/angular.js:15142:13)
at getTrusted (http://localhost:63342/angular_train/static/js/angular-1.3.15/angular.js:15306:16)
at Object.$get.sce.(anonymous function) [as getTrustedHtml] (http://localhost:63342/angular_train/static/js/angular-1.3.15/angular.js:15986:16)
at Object.ngBindHtmlWatchAction [as fn] (http://localhost:63342/angular_train/static/js/angular-1.3.15/angular.js:20593:29)
at Scope.$get.Scope.$digest (http://localhost:63342/angular_train/static/js/angular-1.3.15/angular.js:14308:29)
at Scope.$get.Scope.$apply (http://localhost:63342/angular_train/static/js/angular-1.3.15/angular.js:14571:24)
at HTMLButtonElement.<anonymous> (http://localhost:63342/angular_train/static/js/angular-1.3.15/angular.js:21571:23)
at HTMLButtonElement.eventHandler (http://localhost:63342/angular_train/static/js/angular-1.3.15/angular.js:3032:21)
原因：创建模块时，没有显示引入模块ngSanitize，解决办法如下：
var myApp=angular.module(‘myApp’, [‘angular-growl’,’ngSanitize’]);