Chrome Extension Manifest 'Matches'
If you want to match every URL, then Google has a special pattern just for this purpose: <all_urls>
Sample usage:
"matches": ["<all_urls>"],
See this page for more info: https://developer.chrome.com/extensions/match_patterns
You need to surround the value of the content_scripts
field in square brackets:
"content_scripts": [ {
"matches": ["http://*"],
"js": ["scripts.js"]
} ]
(see the Chrome Docs for more info)
Incidentally, using http://*/*
would be a better match for all urls (see the docs), adding https://*/*
if you also need to match those as well.
Edit:
Following your edit, the error you are getting is because of the match pattern being incorrect.