class Roadie::InvalidUrlPath

This could be a hint that something in your HTML or CSS is broken.
Ruby’s URI class.
Raised when Roadie encounters an invalid URL which cannot be parsed by

def initialize(given_path, cause = nil) 

def initialize(given_path, cause = nil)
  @cause = cause
  if cause
    cause_message = " Caused by: #{cause}"
  else
    cause_message = ""
  end
  super "Cannot use path \"#{given_path}\" in URL generation.#{cause_message}"
end