| response | Partial<[ResponseForRequest](./puppeteer.responseforrequest.md)> | the response to fulfill the request with. |
| priority | number | <i>(Optional)</i> If provided, intercept is resolved using cooperative handling rules. Otherwise, intercept is resolved immediately. |
**Returns:**
Promise<void>
## Remarks
To use this, request interception should be enabled with [Page.setRequestInterception()](./puppeteer.page.setrequestinterception.md).
Exception is immediately thrown if the request interception is not enabled.
## Example
An example of fulfilling all requests with 404 responses:
```ts
await page.setRequestInterception(true);
page.on('request', request => {
request.respond({
status: 404,
contentType: 'text/plain',
body: 'Not Found!',
});
});
```
NOTE: Mocking responses for dataURL requests is not supported. Calling `request.respond` for a dataURL request is a noop.