eslint-plugin-externalincludes

Suite of @html-eslint ESLint rules for working with external references such as script src and link hrefs.

Installation

You'll first need to install ESLint:

npm i eslint --save-dev

Next, install @morgan-stanley/eslint-plugin-externalincludes:

npm install @morgan-stanley/eslint-plugin-externalincludes --save-dev

While @morgan-stanley/eslint-plugin-externalincludes installs @html-eslint/eslint-plugin and @html-eslint/parser as peerDependencies you can optionally install directly.

Usage

Update your .eslintrc configuration file to add ESLint override for html files to specify the @html-eslint/parser and extend recommended rules if desired. Add @html-eslint and externalincludes to the plugins section. You can omit the eslint-plugin- prefix:

  overrides: [
    {
      files: ["*.html"],
      parser: "@html-eslint/parser",
      extends: ["plugin:@html-eslint/recommended"],
    },
  ],
  plugins: [
    "@html-eslint",
    "@morgan-stanley/externalincludes"
  ],

Then configure the rules you want to use under the rules section:

{
    "rules": {
        "@morgan-stanley/externalincludes/enforce-no-external-url": "error",
        "@morgan-stanley/externalincludes/require-script-integrity": "error",
    }
}

If you are using the VS Code ESLint extension, update settings.json to include validation of html:

{
    "eslint.enable": true,
    "eslint.validate": ["javascript", "html"]
}

Rules

Name	Description
enforce-no-external-url	Disallow external includes.
require-script-integrity	Require integrity attribute at <script> tag.