Nginx Load Balancer - Random file named "download" when using Chrome.

B.R. reallfqq-nginx at
Wed Dec 30 10:52:05 UTC 2015

nginx serves content, but does not generate it.
If users download anything, it is either related to the application or to
the client (browser module?).

I suggest you check both sides to find where/how this URI is generated and
why it is accessed.
The incorrect MIME type means a backend has badly positioned a Content-Type
header, or in its absence nginx has been configured to serve this URI as
application/octet-stream (cf.
For its content, as stated before, nginx does not generate it by itself:
you will need to find its source.

​Happy debugging,​
*B. R.*

On Wed, Dec 30, 2015 at 5:23 AM, Laurent Dumont <ml at>

> Hi guys,
> We are using Nginx 1.4.6 as a Load Balancer for our website. Sometimes,
> when a  user loads the website, the browser will start downloading a file
> named "download" which contains the HTTP Response headers. So far, what we
> know is that it only happens when the browser is Chrome and it's maybe once
> every 60-70 page loads. I've narrowed it down to the LB since loading the
> page directly on the app server never triggers a download.
> You also see the following error : "Resource interpreted as Document but
> transferred with MIME type application/octet-stream:" in the Chrome console.
> Any ideas?
> _______________________________________________
> nginx mailing list
> nginx at
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <>

More information about the nginx mailing list