prefer-https

This rule enforces to use HTTPS for embedded resources (image, media, style sheet and script).

Why?

Using HTTPS instead of HTTP provides several advantages:

  1. Security: HTTPS encrypts data, protecting it from being intercepted or tampered with during transmission.
  2. SEO: Search engines prefer HTTPS websites, which can improve your site's ranking.
  3. User Trust: Visitors feel safer browsing a website that uses HTTPS.

How to use

.eslintrc.js 
module.exports = {
  rules: {
    "@html-eslint/prefer-https": "error",
  },
};

Rule Details

Examples of incorrect code for this rule:

<script src="http://ajax.googleapis.com/ajax/libs/jquery/3.4.0/jquery.min.js"></script>
<img src="http://html-eslint.org/logo.svg">
<link rel="stylesheet" href="http://style.css">

Examples of correct code for this rule:

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.0/jquery.min.js"></script>
<img src="https://html-eslint.org/logo.svg">
<img src="/logo.svg">
<link rel="stylesheet" href="https://style.css">
<link rel="stylesheet" href="./style.css">