Extract HTTP headers

Content:

Content-Type: text/html
Content-Length: 163
myHeader: myValue
Date: Thu, 03 Feb 2005 16:44:33 GMT
Server: Apache-Coyote/1.1

Regex: myHeader: (.*)

Comment: (.*) means "any character, except the newline character". The brackets are required to define a group. Extract the header value in NeoLoad using $1$.