Behat/CommonContexts — pull request #45 by dready (2013-09-11 12:48:54+00:00)
Title: Implement Step for Checking the Response Header

This Step let you check if the Response Header contains (or should not contain) a specific text.

For Example:
And response header "Content-Type" should contain "json"

This allows you to check if the Content-Type from the server returns json. The Step is generic so you can check any Header.