[解決済み] ページのソースにあるこの長いスクリプトは何ですか？何に使われているのでしょうか？

質問事項

以下のスクリプトは、htmlページのheadセクションにある <meta> タグを使用します。このような長いスクリプトを内容のないheadセクションに置く目的は何なのか、どなたか説明していただけませんか？

<script type="text/javascript">
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</script>
<script type="text/javascript">
    if (top.location != self.location)
    top.location = self.location;
</script>

解決方法は？

2番目の <script> タグは、フレームバストコードと呼ばれています。 フレーム化されたドキュメントをトップレベルにブレイクアウトします。

top.location != self.location 現在のドキュメントがウィンドウのトップレベルにない場合（例えば、フレームやiframeの中にある）。

そして top.location = self.location; は、現在の URL をウィンドウのトップレベルに設定します。つまり、現在の URL をフレームから分離し、ウィンドウのトップレベルに移動します。

これは、フレーム化されるのを防ぎたいサイトが行うものです。 より詳細な説明を読むことができます こちら .

最近のブラウザは、X-Frame-Optionsヘッダでフレーミングを防ぐ新しい手段をサポートしています。 説明を参照してください。 こちら .

その最初のものが何であるかに興味のある人のために <script> タグは 本論 . これは、ある種のページ追跡スクリプトのように見えます。