get-manifest-external

Include this file in a Chrome App or Extension's background page and it will allow you to request the manifest file from an external page.

Usage

Installation

npm install get-manifest-external --save

background.js

// require the file in background.js
require('get-manifest-external');

// or import the file into background.js (requires babel)
import 'get-manifest-external';

manifest.json

  
  ...

  "externally-connectable": {
    "matches": ["your-external-page-here"]
  }  

External page

chrome.runtime.sendMessage(<your extension key>, { message: 'getManifest' }, function(manifest) {
  console.log(manifest);
});

Why?

Can be used to check if an extension is installed as well as displaying the currently installed extension's version.