API Mock Server in a Browser Extension
"tweak is a browser extension that allows you to tweak your HTTP requests so that you can test, develop and demo your web application.
It's a customizable API mock server in a chrome extension that allows you to change your HTTP requests. The extension allows you to modify the HTTP requests triggered from your web applications at the network level before it reaches the front-end.
You can shape the HTTP response payloads of your backend services without ever leaving the browser. The extension offers basic & advanced functionalities for you to feed data to your web application and simulate or develop new functionalities that are data-driven.
The whole browser extension is powered by Svelte, additionally we use the Svelte Material UI library."
Elisa Monacchi & Daniel Caldas