Determines if default embed handlers should be loaded.

Adds oEmbed discovery links in the head element of the website.

Adds the necessary JavaScript to communicate with the embedded iframes.

Adds a URL format and oEmbed provider URL pair.

Ensures that the specified format is either ‘json’ or ‘xml’.

Attempts to fetch the embed HTML for a provided URL using oEmbed.

Registers the oEmbed REST API route.

Removes an oEmbed provider.

Filters the default array of embed dimensions.

Filter the Google Video embed output.