HTTP:header_exists(header_name)

Returns true when the header <header_name> exists and false when it does not exist.

Syntax

HTTP:header_exists(header_name);

Arguments

Name	Description
Header_name	A string which specifies the header name.

Events

Applicable in the following events:

• HTTP_REQUEST

• HTTP_RESPONSE

Example

when HTTP_REQUEST {
if HTTP:header_exists(“Cookie”) then
…
end
}

Supported Version

FortiADC version 4.3.x and later.