network_rules
Idempotent
Intercept browser network traffic to block requests, redirect URLs, modify request headers, or stub responses with synthetic bodies. Rules persist across reloads until explicitly cleared.
Instructions
Network interception, browser-wide, survives reloads until cleared: block requests, redirect URLs, set/remove request headers, or stub responses with a synthetic body (served by a local helper; from HTTPS pages the stub host must be trustworthy).
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| body | No | Response body (action=stub) | |
| action | Yes | list and clear inspect and drop the rules already installed | |
| header | No | Header name for action=modify_header, e.g. "User-Agent" | |
| status | No | action=stub | |
| url_filter | No | declarativeNetRequest urlFilter, e.g. "||example.com/api/*" | |
| content_type | No | action=stub | application/json |
| header_value | No | Omit to remove header | |
| redirect_url | No | Destination for action=redirect | |
| header_target | No | response = strip content-security-policy / x-frame-options, inject CORS | request |
| resource_types | No | Limit the rule to these request types; omitted = all of them |