Fix extension processing localhost when enableOnLocalhost is disabled

[Copilot]

Extension was processing pages and adding data-ds-ready attribute on localhost even when "Work On Localhost" setting was disabled (the default).

Changes

• Added isLocalhost() helper to detect localhost URLs (localhost, 127.0.0.1, [::1], *.localhost)
• Modified isEnabled() to check enableOnLocalhost setting when on localhost URLs

export const isLocalhost = (hostname: string): boolean => {
  return (
    hostname === "localhost" ||
    hostname === "127.0.0.1" ||
    hostname === "[::1]" ||
    hostname.endsWith(".localhost")
  );
};

When enableOnLocalhost is false (default), isEnabled() now returns false for localhost URLs, preventing content script processing.

Original prompt

---

This section details on the original issue you should resolve

<issue_title>The extension works on localhost even if disabled</issue_title>
<issue_description>The extensio on localhost even if "Work On Localhost" option is disabled still adds things like data-ds-ready to the page

Helium 0.6.7.1 (arm64)
Chromium 142.0.7444.175
```</issue_description>

## Comments on the Issue (you are @copilot in this section)

<comments>
</comments>

• Fixes The extension works on localhost even if disabled #26

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Status	Name	Latest Commit	Updated (UTC)
❌ Deployment failed View logs	dontshow	aefd8ac	Nov 29 2025, 09:54 AM