Just to be clear, are you calling "<a href="http://example.com/client">example.com/client</a>" and serving a js file?<br>If yes, this is the problem, the mime types works based on requested filename extension, if I am not wrong.<br>
As you called /client the nginx don't know what mime type to deliver.<br>So, or you have too use the default_type on that location, or change the request to something like /client.js, <br>or do a rewrite from /client to the js insted of use a location to that.<br>
<br><div class="gmail_quote">On Wed, Oct 24, 2012 at 8:05 AM, Tom van der Woerdt <span dir="ltr"><<a href="mailto:info@tvdw.eu" target="_blank">info@tvdw.eu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">

  
    
  
  <div bgcolor="#FFFFFF" text="#000000">
    <div>Yes, this is in my nginx.conf file :<br>
      <br>
      http {<br>
              include mime.types;<br>
              default_type application/octet-stream;<br>
              <br>
              {more}<br>
              <br>
              include /etc/nginx/conf.d/*.conf;<br>
      }<br>
      <br>
      Tom<br>
      <br>
      <br>
      Op 10/24/12 12:00 PM, Wandenberg Peixoto schreef:<br>
    </div><div><div class="h5">
    <blockquote type="cite">Are you using a mime.types file? Or setting types
      block?<br>
      This file has a mapping from file extension to the content type,
      may be what is missing on your configuration.<br>
      <br>
      <div class="gmail_quote">On Wed, Oct 24, 2012 at 6:59 AM, Tom van
        der Woerdt <span dir="ltr"><<a href="mailto:info@tvdw.eu" target="_blank">info@tvdw.eu</a>></span>
        wrote:<br>
        <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
          <div bgcolor="#FFFFFF" text="#000000">
            <div>Thanks, that works, but it doesn't really sound like a
              solution, more like a workaround.<br>
              <br>
              Tom<br>
              <br>
              <br>
              Op 10/24/12 5:04 AM, Wandenberg Peixoto schreef:<br>
            </div>
            <div>
              <div>
                <blockquote type="cite">Try to set<br>
                  <br>
                  default_type    text/javascript;<br>
                  <br>
                  instead of add_header.<br>
                  <br>
                  Regards,<br>
                  Wandenberg<br>
                  <br>
                  <div class="gmail_quote">On Tue, Oct 23, 2012 at 9:50
                    PM, Tom van der Woerdt <span dir="ltr"><<a href="mailto:info@tvdw.eu" target="_blank">info@tvdw.eu</a>></span>
                    wrote:<br>
                    <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi
                      all,<br>
                      <br>
                      I'm using nginx' locations to serve a javascript
                      file on '/client' :<br>
                      <br>
                          location = /client {<br>
                              expires epoch;<br>
                              alias /path/to/a/file.js;<br>
                          }<br>
                      <br>
                      Works fine, with one major exception: it gets an
                      octet-stream Content-Type header. I tried to solve
                      this with :<br>
                      <br>
                              add_header Content-Type text/javascript;<br>
                      <br>
                      Now I get two Content-Type headers.<br>
                      <br>
                      The raw response:<br>
                      <br>
                      < HTTP/1.1 200 OK<br>
                      < Server: nginx/1.3.6<br>
                      < Date: Tue, 23 Oct 2012 23:42:27 GMT<br>
                      < Content-Type: application/octet-stream<br>
                      < Content-Length: 23245<br>
                      < Last-Modified: Sat, 20 Oct 2012 00:09:12 GMT<br>
                      < Connection: keep-alive<br>
                      < ETag: "5081eba8-5acd"<br>
                      < Expires: Thu, 01 Jan 1970 00:00:01 GMT<br>
                      < Cache-Control: no-cache<br>
                      < Content-Type: text/javascript<br>
                      < Accept-Ranges: bytes<br>
                      <br>
                      nginx information :<br>
                      <br>
                      nginx version: nginx/1.3.6<br>
                      built by gcc 4.4.6 20120305 (Red Hat 4.4.6-4)
                      (GCC)<br>
                      TLS SNI support enabled<br>
                      configure arguments: --user=nginx --group=nginx
                      --with-http_ssl_module
                      --with-http_gzip_static_module
                      --with-http_secure_link_module
                      --with-http_realip_module
                      --with-http_stub_status_module --with-ipv6
                      --with-openssl=/root/libraries/openssl-1.0.1c/
                      --prefix=/etc/nginx/ --sbin-path=/usr/sbin/nginx
                      --conf-path=/etc/nginx/nginx.conf
                      --error-log-path=/var/log/nginx/error.log
                      --http-log-path=/var/log/nginx/access.log
                      --pid-path=/var/run/nginx.pid
                      --lock-path=/var/run/nginx.lock
                      --http-client-body-temp-path=/var/cache/nginx/client_temp
                      --http-proxy-temp-path=/var/cache/nginx/proxy_temp
                      --http-fastcgi-temp-path=/var/cache/nginx/fastcgi_temp

                      --http-uwsgi-temp-path=/var/cache/nginx/uwsgi_temp
                      --http-scgi-temp-path=/var/cache/nginx/scgi_temp<br>
                      <br>
                      Server information :<br>
                      <br>
                      Linux hostname.goes.here
                      2.6.32-279.5.2.el6.centos.plus.i686 #1 SMP Thu Aug
                      23 22:13:33 UTC 2012 i686 i686 i386 GNU/Linux<br>
                      <br>
                      It's not a major issue for me (browsers will
                      accept octet-stream just fine) but might be
                      annoying for other people, should they ever run
                      into this.<br>
                      <br>
                      Tom<br>
                      <br>
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