To the extension of the answer Adelura.
editor.on( 'fileUploadRequest', function( event ) {
var fileLoader = event.data.fileLoader;
fileLoader.xhr.withCredentials = true;
}, null, null, 100);
, XHR XHR. filetools , 5 999 .
editor.on( 'fileUploadRequest', function( evt ) {
var fileLoader = evt.data.fileLoader;
fileLoader.xhr.open( 'POST', fileLoader.uploadUrl, true );
}, null, null, 5 );
editor.on( 'fileUploadRequest', function( evt ) {
var fileLoader = evt.data.fileLoader,
formData = new FormData();
formData.append( 'upload', fileLoader.file, fileLoader.fileName );
fileLoader.xhr.send( formData );
}, null, null, 999 );
, 5 999