How to properly set up shared folder in vitrualbox guest ubuntu server?

Question

virtual box

Hi all.
Please help me solve the problem. The essence of it is that I mounted the folder in virtualbox (Ubuntu guest) with the following command:
sudo mount -t vboxsf web /media/web
The folder itself was shared, all the rules made a symlink on it. In nginx, I pointed the root to the symlink of the shared folder I created earlier.
I check from the real system (Mac OS X 10.10) everything works, but as soon as I start making changes to the files from the real system, let's say in the css file instead of:

.test{
color:#fff;
}

I get:
������������������
I understand that the problem is not properly mounting the folder.
Please tell me how to solve this problem?
Solution
Disable sendfile in nginx configs

Answer 1

maybe encoded? put utf-8