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@plutojl/posthtml-crossorigin

v1.0.0

Published

PostHTML plugin description

Downloads

30

Readme

posthtml-crossorigin

Actions Status NPM Coverage XO code style

Clone this repo and explain what your plugin do and why thousands of people need it ;)

Before:

<html>
  <body>
    <p class="wow">OMG</p>
  </body>
</html>

After:

<svg xmlns="http://www.w3.org/2000/svg">
  <text class="wow" id="wow_id" fill="#4A83B4" fill-rule="evenodd" font-family="Verdana">
    OMG
  </text>
</svg>

Install

Describe how big guys can install your plugin.

npm i posthtml-crossorigin

Usage

Describe how people can use this plugin. Include info about build systems if it's necessary.

const fs = require('fs');
const posthtml = require('posthtml');
const posthtmlCrossorigin = require('posthtml-crossorigin');

posthtml()
    .use(posthtmlCrossorigin({ /* options */ }))
    .process(html/*, options */)
    .then(result => fs.writeFileSync('./after.html', result.html));

Options

You write a function value that computed the crossorigin attribute for each node in the HTML tree. See the example below.

Feature

Before:

<html>
  <body>
    <p>OMG</p>
    <script src="asdf.js"></script>
    <script src="https://mycdn.com/asdf.js"></script>
  </body>
</html>

Add option:

const fs = require('fs');
const posthtml = require('posthtml');
const posthtmlCrossorigin = require('posthtml-crossorigin');

posthtml()
    .use(posthtmlCrossorigin({ 
      value: (src, current_crossorigin_value, node) => {
        // Compute a new crossorigin value here, and return it.
        
        if(src.includes("https://mycdn.com")) {
          return "anonymous"
        } else {
          // If you do not want to change the attribute, return current_crossorigin_value
          return current_crossorigin_value
        }
      }
    }))
    .process(html/*, options */)
    .then(result => fs.writeFileSync('./after.html', result.html));

After:

<html>
  <body>
    <p class="wow">OMG</p>
    <script src="asdf.js"></script>
    <script src="https://mycdn.com/asdf.js" crossorigin="anonymous"></script>
  </body>
</html>

Contributing

See PostHTML Guidelines and contribution guide.