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Document: contentType プロパティ - Web API | MDN
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Document: contentType プロパティ
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since 2018年4月.
Document.contentType プロパティは読み取り専用で、文書がレンダリングされる MIME タイプを返します。これは HTTP ヘッダーやその他の MIME 情報のソースから来る可能性があり、ブラウザーや拡張機能によって行われる自動型変換の影響を受ける可能性があります。
メモ:
このプロパティは <meta> 要素には影響されません。
値
contentType は読み取り専用のプロパティです。
仕様書
| Specification |
|---|
| DOM # ref-for-dom-document-contenttype① |
ブラウザーの互換性
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