$namespaces = [];
if (!\Drupal::moduleHandler()->moduleExists('rdf')) {
$namespaces = [
- 'xmlns:dc' => 'http://purl.org/dc/terms/',
- 'xmlns:og' => 'http://ogp.me/ns#',
+ 'prefix' => 'og: http://ogp.me/ns#',
];
}
- // Namespaces for OpenGraph.
- $namespaces['xmlns:article'] = "http://ogp.me/ns/article#";
- $namespaces['xmlns:book'] = "http://ogp.me/ns/book#";
- $namespaces['xmlns:product'] = "http://ogp.me/ns/product#";
- $namespaces['xmlns:profile'] = "http://ogp.me/ns/profile#";
- $namespaces['xmlns:video'] = "http://ogp.me/ns/video#";
-
// Namespaces for Google+.
if (isset($variables['itemtype'])) {
$namespaces['itemscope'] = '';