page-to-extension-rpc
What it does
This projet provides a webextension an a webpage that demostrate an RPC Connection between page an extension.
This extension includes a content script, which is injected into the accessed pages. This content script build and connects pull-streams both to the page and the bakground script so that the background script can provide an api that can be accessed from any page using a muxrpc connection.
The communication uses the page to extension messaging described at https://github.com/mdn/webextensions-examples/tree/master/page-to-extension-messaging, builds pull-streams on top of those messages and uses these streams for the RPC connection. The communication between content script and background script is similar an bases on the method described at https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/Content_scripts#Communicating_with_background_scripts.
How to try it
Building
npm install
npm run-script build
Running
To run the example you need to have the extension intalle and acce the example page.
npm run-script start:ext
This should start a browser with the extension. Alternatively you can also load the extension from the webext folder as temporary extension in your browser. Access the file page.html in the site folder.
npm run-script serve
Now you can access http://localhost:9090/page.html
What it shows
How to make an RPC connection between an extension's content scripts, and scripts running in a web page.