Sets the Content-Type header on responses which don’t have one.
Builder Usage:
use Rack::ContentType, "text/plain"
When no content type argument is provided, “text/html” is assumed.
# File lib/rack/content_type.rb, line 12 def initialize(app, content_type = "text/html") @app, @content_type = app, content_type end
# File lib/rack/content_type.rb, line 16 def call(env) status, headers, body = @app.call(env) headers = Utils::HeaderHash.new(headers) headers['Content-Type'] ||= @content_type [status, headers, body] end