propertyNamePrefix property

@override String propertyNamePrefix

Prefix of property's name which identify which rich information provider is used.

Reference of values:

Providers	Prefix of property name	Example
Open Graph Protocol	og	og:title
Twitter Card	twitter	twitter:card

This property must return non-empty String to recognise corresponded parser in MetaFetch. If offered it empty, majority operations done in MetaFetch will throw ArgumentError.

Implementation

@override
final String propertyNamePrefix = "twitter";