redirectTarget.html

This page is the redirect target of requests matching rule 1 from redirect-rules.json.
The pattern ||example.com/| means: (sub)domain of example.com, with path "/" and nothing else before the end of the URL.

  {
    "id": 1,
    "priority": 4,
    "condition": {
      "urlFilter": "||example.com/|",
      "resourceTypes": ["main_frame"]
    },
    "action": {
      "type": "redirect",
      "redirect": {
        "extensionPath": "/redirectTarget.html"
      }
    }
  },

For the redirect to have succeeded, three conditions must be met:

The declarativeNetRequest (DNR) rule should match the request.
The extension must declare the pre-redirect URL in host_permissions (in manifest.json) and the user should grant the permission.
The extension path in extensionPath must be declared in web_accessible_resources (in manifest.json), and the pre-redirect URL should match the pattern in matches.

See popup.html for the permissions UI and examples.