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activist

v0.1.1

Published

resilience to network interference

Downloads

3

Vulnerabilities

Powered byPowered by Snyk
  • 0High
  • 0Medium
  • 0Low

Links

Git

Maintainers

willscottwillscott

Keywords

Readme

activist.js

activist.js is a standalone library for making your site resilient to unexpected network events.

Activist comes in 2 versions, which offer a trade-off between how much work you need to do to add the library to your site, and how many of your users will be able to take advantage of the work. New browsers provide features that make the installation of activist.js as simple as adding a script tag to your home page, however this version of the library will only work for a small percentage of your user base (up-to-date chrome users). Activist also is packaged with a drop-in application cache manifst, which will extend the benefit to most users, but can require wider site changes.

Deploying

  1. Add activist.js to your site.

    <script type='text/javascript' src='activist.js' async></script>

  2. Add Offline Cache (recommended)

    Adding an application cache manifest will allow activist.js to run on most browsers, and is strongly recommended. Adding this cache is a 2 step process. First, modify the html tag of your pages to reference the cache. It should look something like this:

    <html manifest="/activist.appcache">

    A sample appcache is available on activistjs.com.

    The application cache needs to be served with the mime type of 'text/cache-manifest' to work on old versions of internet explorer.

    More information on application cache mechanics are available on the w3 website.

How?

Activist tries really hard to keep your content accessible in the face of adversity. In practice this results in several independent processes that kick into action when your server is unavailable.

The first line of access is to preserve a reasonable cache of your site to allow users to see existing content even if they can't get new updates. To this end, Activist maintains a cache of your content on client machines and shows that content when needed.

To retreive updates, Activist attempts to establish connectivity through CDNs and other rendezvous services. These rendezvous services update while Activist is online, and aim to force interference with a large quantity of content to successfully disrupt.

Contributing

Contribution and help are welcome! activist.js development is centered on github, and open tasks can be found in the issues area of this repository.

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