Ablayer

This tool allows you to proxy an external site and overwrite external sources with local versions.

Usecases:

• Running experiments against a external applications.
• For creating layered abtests (an ABtest that can be added as a layer on top of an existing system).
• Serves your code as if it was part of the system, without the need of running the entire system locally.
• Debugging and troubleshooting in production: Allows you to test your local (javascript) build against production.
• Great for demonstrations and proof of concepts.

Usage:

ablayer --url https://some-site.com [--port 9900] [--cors]

Installation

npm install -g ablayer

• Tested with node 8, npm 5, on linux and MacOS.

An example:

• Check out the Hackernews example to see how ablayer can be used to try out a custom theme and add new/seen/read comments feature to Hackernews

Features

• Proxy against http and https servers.
• Serves files from the current directory
  • abtest.js will be automatically injected in each html file that is served via ablayer.
  • for each requested file ablayer will check if it exists locally, otherwise it will proxy the request to the external server.
• Will rewrite links so you stay on localhost.
• Cookies are handled appropriately, so you can login via your localhost on the external system.
• Redirects will be rewritten, so you stay on localhost.

Bugs and feedback

You may use github issues for bugs, feedback, feature requests here