# constant (not authed).
}
# transfer errors from ?gb-error to gb::$errors
if (isset($_GET['gb-error']) && $_GET['gb-error']) {
if (is_array($_GET['gb-error'])) {
gb::$errors = array_merge(gb::$errors, $_GET['gb-error']);
} else {
gb::$errors[] = $_GET['gb-error'];
}
}
# preview mode?
if (isset($_GET[gb::$preview_query_key]) && gb::$authorized) {
gb::$is_preview = true;
$version = 'work';
} elseif (isset($_GET[gb::$version_query_key]) && gb::$authorized) {
gb::$is_preview = true;
$version = $_GET[gb::$version_query_key];
}
if (gb::$is_preview === true && isset($_GET[gb::$pathspec_query_key])) {
$preview_pathspec = $_GET[gb::$pathspec_query_key];
}
if (gb::$is_preview) {
header('Cache-Control: no-cache');
}
# load plugins
gb::load_plugins('request');
gb::event('will-parse-request');
register_shutdown_function(array('gb', 'event'), 'did-handle-request');
if ($gb_request_uri) {
if (strpos($gb_request_uri, gb::$categories_prefix) === 0) {
# category(ies)
