Why can not upload files from the Android web browser (Chrome)?

#259 Hello,
Multer file uploads is so good!
But there is a problem. Web browser, Apple ios safari's file uploads well, but uploading from Chrome on Android will cause an error in the file upload function. I could not find the cause(500 err). The example code uses a generic multer file upload code, but it does not work. Only in the web browser of Android.
* code *
var i=0; //
var maxFileCount = 6;
var maxFileSize = 1 * 1000 * 1000;
var storage = multer.diskStorage({
destination: function (req, file, callback) {
callback(null, './tmp/uploads/images');
},
filename: function (req, file, callback) {
callback(null, Date.now() + '_' + file.originalname);
}
});
router.post('/ckedit/upload', function(req, res) {
console.log(">>>>> request ckeditor upload ");
upload(req, res, function(err) {
console.log("req.body : ", req.body);
var realUrl = '/uploads/images';
var file = req.file;
console.log(">>> file : " + file.originalname);
var originalFileNm = file.originalname;
var savedFileNm = file.filename;
//var fileDest = file.destination;
var fileSize = file.size;
console.log("originalFileNm : '%s', savedFile: '%s', size : '%s'", originalFileNm, savedFileNm, fileSize);
console.log(">>> savedFileNm = " + savedFileNm);
//console.log(">>>> fileFullPath = " + fileDest);
console.log(">>> req.body.CKEditorFuncNum : " + req.query.CKEditorFuncNum);
if(err) {
//return res.send(err);
return res.send(""
+ "alert( error : " + JSON.stringify(err) +")"
+ "");
} else {
//return res.json({result : 'OK', fileName : savedFileNm, fileFullPath : fileFullPath, fileSize : fileSize});
return res.send("window.parent.CKEDITOR.tools.callFunction("+
+ req.query.CKEditorFuncNum
+ ",'"
+ realUrl + "/" + savedFileNm
+ "',' file upload complete!'"
+ ");");
}
});
});

i guess, this part is problem. If i add this part, then get an error.
{storage : storage, limits: {fileSize: maxFileSize}}
....
POST /ckedit/upload 500 607.514 ms - 7458

but Except for this part, it works fine. Only in the Android web browser ..

---> i found a problem!
"limits: {fileSize: maxFileSize}" this option is a problem..
get a problem when insert this part.
Do we need the busboy installation?