How do I limit the sites my extension runs on?

[CodyBontecou]

How can I limit the sites my extension runs on?

I've attempted the following In my src/manifest.ts file:

content_scripts: [
      {
        matches: [
          'https://twitter.com/*',
          'https://mobile.twitter.com/*',
          'https://x.com/*',
        ],
        js: [
          'dist/contentScripts/index.global.js',
        ],
      }
]

But, it doesn't work. My extension is still loading and applying its effect on other tabs/domains.

[tmkx]

https://developer.chrome.com/docs/extensions/develop/concepts/content-scripts#static-declarative

have you reloaded the extension after you changed the matches rules?

[CodyBontecou]

Hmm. It seems like something happened to my dev server. Restarting it did the trick.