More generic Content Scripts match pattern? - google-chrome

Question

I want to match:
http://images.orkut.com/
http://www.orkut.co.uk/
http://www.orkut.com.br/
http://images.orkut.jp/
The pattern I am trying to use is:
http://*.orkut.*/*
But when I try to load the extension it says:
invalid value for content_scripts[0].matches[0]
Is there a way to match these urls without specifying the full domain?
In the manifest file
"permissions": [ "tabs", "http://*.orkut.*/*", "https://*.orkut.*/*" ],
"content_scripts":
[
{
"matches": [ "http://*.orkut.*/" ], // error
"js": ["content/loader.js"]
}
]
A more generic doesn't work, while this one works:
"matches": [ "http://*.orkut.co.uk/" ],

Answer 1

You cannot do that do to security reasons, please refer to http://code.google.com/chrome/extensions/match_patterns.html for more information.
As well, team lead of Chrome Extension did a nice explanation why:
http://groups.google.com/a/chromium.org/group/chromium-extensions/msg/3d305eb340f01763

Answer 2

As Mohamed Mansour's answer mentioned, this is not supported by google in the manifest.json
However, you can still add a simple javascript check in your content script!
For example, this is how I workaround a similar case where I wanted the content script to be executed only on 192.168.*.* hosts (it's an in-house chrome extension)
in your manifest.json use <all_urls>
...
"content_scripts": [
{
"matches": ["<all_urls>"],
"js": ["content-script.js"]
}
],
...
in your content-script.js use a simple condition to verify if the hostname matches a regex pattern
let isValidHostname = /^192.168.\d+.\d+$/.test(window.location.hostname);
if (isValidHostname){
// Do your stuff here
}