title: How do I use Chrome Content-Script, match patterns on the URL's query parameters?
body: <p>I'm trying to make a Chrome extension, with content scripts, match only Google-Images search results pages.<br>
  They (so far as I could tell) are identified by <code>&amp;tbm=isch</code> in the URL parameters. But, match patterns seem to work only on the path. How do I do this?</p>