1..15
# ->clean()
 -  checks that the value is a valid URL
 -  checks that the value is a valid URL
 -  checks that the value is a valid URL
 -  checks that the value is a valid URL
 -  checks that the value is a valid URL
 -  checks that the value is a valid URL
 -  checks that the value is a valid URL
 -  checks that the value is a valid URL
 -  throws an sfValidatorError if the value is not a valid URL
 -  throws a sfValidatorError
 -  throws an sfValidatorError if the value is not a valid URL
 -  throws a sfValidatorError
 -  throws an sfValidatorError if the value is not a valid URL
 -  throws a sfValidatorError
 -  only allows protocols specified in the protocols option
# Looks like everything went fine.