github.com/gildesmarais/jekyll-loading-lazy

jekyll-loading-lazy

This plugin adds loading="lazy" to all img and iframe tags on your Jekyll site. No configuration needed.
If a loading attribute is already present nothing is changed.

loading="lazy" causes images and iframes to load lazily without any JavaScript. Browser support is growing.
If a browser does not support the loading attribute, it will directly (read: blockingly) load the resource.

If you like it, be awesome and buy me a coffee ☕️. Thank you!

Installation

1. Add the following to your site's Gemfile:

   gem 'jekyll-loading-lazy'
   

2. add the following to your site's _config.yml:

   plugins:
     - jekyll-loading-lazy
   

   Note: if jekyll --version is less than 3.5 use:

   gems:
     - jekyll-loading-lazy
   

3. In your terminal, execute:

   bundle
   

4. (re)start your Jekyll server with:

   jekyll serve
   

That's basically all there is. In case you want to eager load some images/iframes, add loading="eager" to their tags.

Contributing

1. Fork this repository
2. Create your branch (`git checkout -b feat/my-new-feature)
3. Commit your changes (git commit -m 'Add cool feature')
4. Push to the branch (git push origin feat/my-new-feature)
5. Create a new Pull Request

Testing

rake

Credits

Thanks to @keithmifsud's jekyll-target-blank whereon this Jekyll plugin largely bases.