extension.onRequestExternal

Warning: This is not implemented in Firefox because it has been deprecated since Chrome 33. Please use runtime.onMessageExternal instead.

Fired when a request is sent from another extension.

Syntax

js

chrome.extension.onRequestExternal.addListener(function(
  request,      // optional any
  sender,       // runtime.MessageSender
  sendResponse, // function
) { })
chrome.extension.onRequestExternal.removeListener(listener)
chrome.extension.onRequestExternal.hasListener(listener)

Events have three functions:

addListener(listener)

Adds a listener to this event.

removeListener(listener)

Stop listening to this event. The listener argument is the listener to remove.

hasListener(listener)

Check whether listener is registered for this event. Returns true if it is listening, false otherwise.

addListener syntax

Parameters

listener

The function called when this event occurs. The function is passed these arguments:

request

any. The request sent by the calling script.

sender

runtime.MessageSender.

sendResponse

function. Function to call when you have a response. The argument should be any JSON-ifiable object, or undefined if there is no response.

Browser compatibility

BCD tables only load in the browser

Note: This API is based on Chromium's chrome.extension API. This documentation is derived from extension.json in the Chromium code.