content_scripts

タイプ	`Array`
必須か	No

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このキーはarrayです。それぞれのアイテムは以下の条件を満たすobjectです:

必ずmatchesという名前のキーを含まなければなりません。that specifies the URL patterns to be matched in order for the scripts to be loaded
may contain keys named js and css, which list scripts to be loaded into matching pages
may contain a number of other properties that control finer aspects of how and when content scripts are loaded

Details of all the keys you can include are given in the table below.

Name	Type	Description
`all_frames`	`Boolean`	`true`: inject the scripts specified in `js` and `css` into all frames in the page. `false`: inject into only the topmost frame. Defaults to `false`.
`css`	`Array`	An array of paths, relative to manifest.json, referencing CSS files that will be injected into matching pages. Files are injected in the order given, and before the DOM is loaded.
`exclude_matches`	`Array`	An array of match patterns. Use this to exclude pages that are matched by `matches`. If the URL of a page matches a pattern in `matches`, and also matches a pattern in `exclude_matches`, then the scripts specified in `js` and `css` will not be loaded into it.
`js`	`Array`	An array of paths, relative to the manifest.json file, referencing JavaScript files that will be injected into matching pages. Files are injected in the order given. This means that, for example, if you include jQuery here followed by another content script, like this: `"js": ["jquery.js", "my-content-script.js"]` then `"my-content-script.js"` can use jQuery. Files are injected at the time specified by `run_at`.
`matches`	`Array`	An array of match patterns. The scripts specified in `js` and `css` will be loaded into a page only if the URL of the page: matches any of the match patterns specified in `matches`, and does not match any of the match patterns specified in `exclude_matches`. This is the only mandatory key.
`run_at`	`String`	This option determines when the scripts specified in `js` are injected. You can supply one of three strings here, each of which identifies a state in the process of loading a document. The states directly correspond to `Document.readyState`: `"document_start"`: corresponds to `loading`. The DOM is still loading. "`document_end`": corresponds to `interactive`. The DOM has finished loading, but resources such as scripts and images may still be loading. "`document_idle`": corresponds to `complete`. The document and all its resources have finished loading. The default value is `"document_idle"`. In all cases, files in `js` are injected after files in `css`.

Chrome incompatibilities

Firefox does not support:

match_about_blank

例

"content_scripts": [
  {
    "matches": ["*://*.mozilla.org/*"],
    "js": ["borderify.js"]
  }
]

This injects a single content script "borderify.js" into all pages under "mozilla.org" or any of its subdomains, whether served over HTTP or HTTPS.

  "content_scripts": [
    {
      "exclude_matches": ["*://developer.mozilla.org/*"],
      "matches": ["*://*.mozilla.org/*"],
      "js": ["jquery.js", "borderify.js"]
    }
  ]

This injects two content scripts into all pages under "mozilla.org" or any of its subdomains except "developer.mozilla.org", whether served over HTTP or HTTPS.

The content scripts see the same view of the DOM and are injected in the order they appear in the array, so "borderify.js" can see global variables added by "jquery.js".

content_scripts

Chrome incompatibilities

例

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