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Chrome Extension iframeの中でも処理を行う設定

Last updated at Posted at 2022-06-06

どんな時?

Extensionを使いたいページで例えば、リンクマウスオーバーでプレビューが出るようなページがあるとする。
そのプレビューがiframeを使って実現されている場合、iframe内でも同様のChrome Extensionを呼んでほしい。
そんな時があるとする。

結論

"all_frames": trueを記述すればOK。

manifest.json

{
  "manifest_version": 3,
  "name": "開発中",
  "version": "3.0.0",
  "description": "説明文",
  "content_scripts":[
    {
      "all_frames": true
    }
  ]
}

content.js
$(function(){
  alert('呼んだ?');
});


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