Performs an HTTP request using the HEAD method and returns its response.

Performs an HTTP request using the POST method and returns its response.

Performs an HTTP request and returns its response.

Retrieve only the body from the raw response.

Retrieve a single header by name from the raw response.

Retrieve only the headers from the raw response.

Retrieve only the response code from the raw response.

Retrieve only the response message from the raw response.

Suspend cache invalidation.

Outputs the TinyMCE editor.