Chrome Extension. Onload Blur fails.

Question

I'm creating a Chrome Extension that blurs any textarea of a page when loading, but it doesn't work. Any ideas? Here's the code:

Manifest.json:

{
"name":"foo",
"version":"1.0",
"manifest_version":2,
"description":"foo",
"content_scripts":[{
     "matches":["http://*/*"],
     "js":["content.js", "jquery-1.8.3.min.js"]}]
 }

Content.js:

$(document).ready(function(){
$("input").blur})

Answer 1

$("input").blur();

blur is a method.