header
Adds a header to the request.
Headers are added to the request and sent to the server. Multiple calls with the same header name will append additional values rather than replacing the previous value.
Parameters
name
The header name (case-insensitive).
value
The header value (case-sensitive).
Retrieves the value(s) of a header by name.
Return
The header value(s) as a string, or null if the header doesn't exist.
Parameters
name
The header name (case-insensitive).