Javascript – ERR_CONTENT_LENGTH_MISMATCH

I am getting Error: net::ERR_CONTENT_LENGTH_MISMATCH

Have a look at your server logs to determine what the real issue is.

For me the problem lay somewhere between nginx and file permissions:

• tail -f /usr/local/var/log/nginx/error.log or run nginx -t to determine your conf location, where you could specify a custom log path.
• refresh the asset in your browser, eg http://localhost:3000/assets/jquery/jquery.js

You may see something like this in the logs:

“/usr/local/var/run/nginx/proxy_temp/9/04/0000000049” failed (13: Permission denied) while reading upstream for file xyz

Heres how I fixed:

sudo nginx -s stop    
sudo rm -rf /usr/local/var/run/nginx/*    
sudo nginx