Nginx configuration for laravel - adding special characters at the end of js file

gistfile1.txt

Developing web app using vagrant is awesome. It make us ease to switch between one environtment to other. 
But sometimes there are strange thing.In my case, I develope web application using laravel in 
vagrant environtment (xenial ubuntu server and nginx). In half of development i found something strange.
My javascripts file didn't update directly when I change and there is special characters at the end of javascript.
After googling for hours, I got the solution.
Here is the solution.
1. Find nginx configuration /etc/nginx/nginx.conf
2. Open the file nginx.conf and find 'sendfile on' configuration, change it to sendfile off;
Find the screeenshoot on comment part.

SC error on javascript file

SC Solution nginx.conf