jekyll plugin to use service workers and make site content available offline
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ruby gem/jekyll plugin to use service workers and make site content available offline. When visitors load a site, the service worker will be registered and cache content on their device, enabling people to read the content offline/without a network connection.

Many thanks to @gauntface and @jakearchibald for two great resources on Service Workers:


Add this line to your application's Gemfile:

group 'jekyll-plugins' do
  gem 'jekyll-offline', :git => 'git://'

And add this to your _config.yml:

gems: ['jekyll-offline']

And then execute:

$ bundle install


The plugin does most of the work for you, but you have to initialize the service worker on the page with the {% register_service_worker %} liquid tag. It is generally a good idea to put this near the bottom of your default layout so that all pages have it.

You can use a variety of strategies to respond to requests. These strategies were pulled from the offline cookbook with minimal changes.

Configure jekyll-offline to use a given strategy by adding the following to your _config.yml:

  strategy: << whatever you want >>

You can supply the following options as the value for strategy:

  • cache-only
  • network-only
  • cache-first-network-fallback
  • network-first-cache-fallback
  • cache-network-race
  • cache-then-network (default)


Bug reports and pull requests are welcome on GitHub at[USERNAME]/jekyll-offline. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.


The gem is available as open source under the terms of the MIT License.