<html{% if locale is defined and locale %} lang="{{ locale }}"{% endif %}>
<!DOCTYPE html>
<html{% if locale is defined and locale %} lang="{{ locale }}"{% endif %}>
- <head{% if facebook is defined and facebook and facebook['heads'] is defined and facebook['heads'] %} prefix="{{ facebook['heads']|map((value, key) => "#{key}: #{value}")|join(' ') }}"{% endif %}>
+ <head{% if facebook is defined and facebook and facebook['prefixes'] is defined and facebook['prefixes'] %} prefix="{{ facebook['prefixes']|map((value, key) => "#{key}: #{value}")|join(' ') }}"{% endif %}>