javascript - how do i allow header "Accept-Ranges" in nginx? -


i have app working localhost:8888 using tornado, , headers i'v set:

 def set_default_headers(self):     self.add_header("access-control-allow-origin", "*")     self.add_header("access-control-expose-headers","accept-ranges")     self.add_header("access-control-expose-headers","content-encoding")     self.add_header("access-control-expose-headers"," content-length")     self.add_header("access-control-expose-headers","content-range")

the app on localhot:8888 needs static file locahost:80, , nginx server on localhost:80 looks this:

server {   listen 80;   server_name localhost;   root /var/www/statics;   passenger_enabled on;   passenger_use_global_queue on;   add_header access-control-allow-origin *;   add_header access-control-allow-origin [http://localhost:8888;]   add_header access-control-expose-headers accept-ranges;   add_header access-control-expose-headers content-encoding;   add_header access-control-expose-headers content-length;   add_header access-control-expose-headers content-range;   add_header accept_ranges bytes;   client_max_body_size 512m; }

but error in browser persistent: 

refused unsafe header "accept-ranges"

i tried add headers above after seeing issue concerned op gave solution making static pdf server return headers

access-control-allow-headers: range access-control-expose-headers: accept-ranges, content-encoding, content-length,

how achieve in nginx , tornado?

for getting static file method need add access-control-allow-origin header nginx. have created following show how access static file cross origin.

i have created tornado server () hosts html file. trying access static file using javascript hosted nginx

tornado server.py

import tornado.web import tornado.ioloop   class mainhandler(tornado.web.requesthandler):     def get(self):         self.render('index.html')   if __name__ == '__main__':     app = tornado.web.application([             (r'/', mainhandler)         ])     app.listen(12303)     tornado.ioloop.ioloop.instance().start()

index.html

<!doctype html> <html>     <head>         <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.0/jquery.min.js" type="text/javascript"></script>     </head>     <body>     <p> hi </p>     <button id="btn">click</button>     <div id="content"></div>     </body>     <script>         $(document).ready(function(){             $('#btn').click(function(){                 $.get('http://localhost:12300/stacktest/abc.html', function(data){                     $('#content').append(data);                 });             });         });             </script> </htm>

nginx configuration

server{         listen          12300;         server_name     localhost;          location /stacktest {             alias d:/stackof_test;             index index.html;             add_header access-control-allow-origin http://localhost:12303;                     }     }

please note on windows , location "d:/stackof_test" contains file called "abc.html" following content

<p>got file</p>

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