Port error: Could not establish connection. Receiving end does not exist. In Chromiume

Question

I\'m developing an extension in Chrome, and there\'s a problem. In my inject.js, I make a request like:

chrome.extension.sendRequest({command:         


        

Answer 1

For manifest 2.0 and sendMessage case its fairly straight-forward:

This happens if you try to use sendMessage inside the popup and there's no listener setup on background script end or the listener has somehow been removed.

By listener I mean - chrome.runtime.onMessage.addListener.