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filter is not described

allowed_http_origin filter-hook . WP 3.4.0

Change the allowed HTTP origin result.

Usage

add_filter( 'allowed_http_origin', 'filter_function_name_8813', 10, 2 );
function filter_function_name_8813( $origin, $origin_arg ){
	// filter...

	return $origin;
}
$origin(string)
Origin URL if allowed, empty string if not.
$origin_arg(string)
Original origin string passed into is_allowed_http_origin function.

Where the hook is called

is_allowed_http_origin()
wp-includes/http.php 471
return apply_filters( 'allowed_http_origin', $origin, $origin_arg );

Where the hook is used (in WP core)

Does not used.