How to know when google searches?

问题

I'm developing a chrome extension and I need to know when is google searching to perform an action on each search.

I've tried to listen the requests with chrome.webRequest but the cached requests aren't captured.

Evernote extension searches in my notes each time I search in Google, even if the request is cached. How are they doing it or how to make something similar?

回答1:

Here is a post on the subject http://isgeek.eu/google-chrome-extension-google-search

The trick is to use

document.addEventListener("DOMSubtreeModified", function(event){

to listen to each change on the google search page.

来源：https://stackoverflow.com/questions/17163305/how-to-know-when-google-searches