# UNDECLARED_NETWORK: Network request to an undeclared origin

> Network request to an undeclared origin

| Severity | Fault                         | Stage        |
| -------- | ----------------------------- | ------------ |
| error    | customer (the source package) | build output |

## What it means

The component sends a request (fetch, WebSocket, EventSource, sendBeacon, XMLHttpRequest, an RTCPeerConnection) or carries data out through another channel (new Image().src, a <link> element, a form's action or form.submit(), window.open, location.href = …, location.assign or replace, url() in a style built in code) to an origin its manifest does not declare in permissions.connect, to a relative URL (the host site itself) or to a URL built at run time, whose origin the build cannot check (rule undeclared-network).

## How to fix

Write the URL as a literal that starts with its origin (fetch("<https://api.example.com/items>")) and declare that origin in defineTaggorComponent({ permissions: { connect: ["<https://api.example.com>"] } }). XMLHttpRequest: use fetch. RTCPeerConnection and form.submit() are never allowed.