有时候当我加载我的网站时，大约五次中有一次会加载失败，在IE 9控制台中显示：
SCRIPT5007: Unable to get value of the property 'normalize': object is null or undefined
require.js, line 929 character 25
SCRIPT5007: Unable to get value of the property 'normalize': object is null or undefined
require.js, line 929 character 25
SCRIPT5007: Unable to get value of the property 'extend': object is null or undefined
Module.js?ts=@@timestamp, line 52 character 3
SCRIPT5007: Unable to get value of the property 'normalize': object is null or undefined
require.js, line 929 character 25
SCRIPT5007: Unable to get value of the property 'View': object is null or undefined
View.js?ts=@@timestamp, line 8 character 3
SCRIPT5007: Unable to set value of the property 'Validation': object is null or undefined
backbone.validation.js?ts=@@timestamp, line 15 character 3
SCRIPT5007: Unable to get value of the property 'extend': object is null or undefined
Class.js?ts=@@timestamp, line 10 character 3
SCRIPT5007: Object expected
hbs.js?ts=@@timestamp, line 143 character 15
SCRIPT5007: Object expected
hbs.js?ts=@@timestamp, line 143 character 15
SCRIPT5007: Object expected
hbs.js?ts=@@timestamp, line 143 character 15
SCRIPT5022: Load timeout for modules: css!lib/foundation/style_unnormalized2,css!lib/icon-font/fontcustom_unnormalized3,css!lib/icon-font/icon-font_unnormalized4,hbs!modules/header/HeaderTemplate_unnormalized5,css!modules/header/HeaderStyle_unnormalized6,hbs!lib/components/avatar/AvatarTemplate_unnormalized7,css!lib/components/avatar/AvatarStyle_unnormalized8,hbs!modules/login/LoginTemplate_unnormalized9,css!modules/login/LoginStyle_unnormalized10,hbs!modules/header/HeaderTemplate,hbs!lib/components/avatar/AvatarTemplate,hbs!modules/login/LoginTemplate
http://requirejs.org/docs/errors.html#timeout
require.js, line 1758 character 9
令人困惑的是它只是偶尔发生，可能是因为我要求JavaScript文件的方式不正确？