Public: generate an X-Frame-Options header.
Returns a default header if no configuration is provided, or a header name and value based on the config.
# File lib/secure_headers/headers/x_frame_options.rb, line 19 def make_header(config = nil) return if config == OPT_OUT [HEADER_NAME, config || DEFAULT_VALUE] end
# File lib/secure_headers/headers/x_frame_options.rb, line 24 def validate_config!(config) return if config.nil? || config == OPT_OUT raise TypeError.new("Must be a string. Found #{config.class}: #{config}") unless config.is_a?(String) unless config =~ VALID_XFO_HEADER raise XFOConfigError.new("Value must be SAMEORIGIN|DENY|ALLOW-FROM:|ALLOWALL") end end