public function getModifiedTime( ResourceLoaderContext $context ) {
$hash = $context->getHash();
if ( !isset( $this->modifiedTime[$hash] ) ) {
public function getModifiedTime( ResourceLoaderContext $context ) {
$hash = $context->getHash();
if ( !isset( $this->modifiedTime[$hash] ) ) {
$style = implode( "\n", $rules );
if ( $this->getFlip( $context ) ) {
$style = CSSJanus::transform( $style, true, false );
$style = implode( "\n", $rules );
if ( $this->getFlip( $context ) ) {
$style = CSSJanus::transform( $style, true, false );