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我試圖插入Facebook頁面插件在HTML頁面中,我遵循本指南:https://developers.facebook.com/docs/plugins/page-plugin 這是我如何插入代碼的頁面:Facebook網頁插件不會在HTML頁面中顯示
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>CNN</title>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
</head>
<body>
<div id="fb-root"></div>
<script>(function(d, s, id) {
var js, fjs = d.getElementsByTagName(s)[0];
if (d.getElementById(id)) return;
js = d.createElement(s); js.id = id;
js.src = "//connect.facebook.net/en_US/sdk.js#xfbml=1&version=v2.5";
fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));</script>
<div class="fb-page" data-href="https://www.facebook.com/cnn" data-width="300" data-height="200" data-small-header="false" data-adapt-container-width="true" data-hide-cover="false" data-show-facepile="true" data-show-posts="false"><div class="fb-xfbml-parse-ignore"><blockquote cite="https://www.facebook.com/cnn"><a href="https://www.facebook.com/cnn">CNN</a></blockquote></div></div>
</body>
</html>
但頁面插件不顯示。任何想法爲什麼它不起作用?