IE 8不下载html5shim和respond.js

I have uploaded a page to a webserver. When I go there with IE and switch browser mode to IE 8 or IE 7 to see if html5shiv and respond.js are downloaded I see that they are not. Anybody knows why ? I use bootstrap's recommended template with a bit added code in a . Here is the code : I have uploaded a page to a webserver. When I g