balticrest/public/bundles/fosckeditor/plugins/exportpdf/tests/manual/notificationsasync.html

<div id="editor1">
	<p>Export to PDF test 1.</p>
</div>

<div id="editor2">
	<p>Export to PDF test 2.</p>
</div>

<script>
	exportPdfUtils.initManualTest();

	var editor1 = CKEDITOR.replace( 'editor1', exportPdfUtils.getDefaultConfig( 'manual' ) );

	editor1.on( 'exportPdf', function( evt ) {
		if ( !evt.data.asyncDone ) {
			setTimeout( function() {
				evt.data.html = '<p>Content filtered!</p>';
				evt.data.asyncDone = true;

				editor1.fire( 'exportPdf', evt.data );
			}, 2000 );

			evt.cancel();
		} else {
			delete evt.data.asyncDone;
		}
	}, null, null, 1 );

	var editor2 = CKEDITOR.replace( 'editor2', exportPdfUtils.getDefaultConfig( 'manual' ) );

	editor2.on( 'exportPdf', function( evt ) {
		if ( !evt.data.asyncDone ) {
			setTimeout( function() {
				evt.data.html = '<p>Content filtered!</p>';
				evt.data.asyncDone = true;

				editor2.fire( 'exportPdf', evt.data );
			}, 2000 );

			evt.cancel();
		} else {
			delete evt.data.asyncDone;
		}
	}, null, null, 17 );
</script>