Add an HTTP header to be sent along with the request.
Returns void. If you are not using enterprise edition it will throw an error.
Version | Description |
---|---|
5.0 | Available for professional and enterprise edition. |
4.5 | Available for enterprise edition. |
In certain rare cases it may be necessary to explicitly add a custom header of the POST data of an HTTP request. This may be required in cases where a site is using AJAX, and the POST payload of a request is sent as XML (e.g., using the setRequestEntity method). This method must be invoked before the HTTP request is made (e.g., "Before file is scraped" for a scrapeable file).