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cors-it

Add CORS to anything!

cors-it is a Node app which acts as a proxy for arbitrary URLs, adding CORS-compliant headers:

access-control-allow-origin: *
access-control-allow-headers: Content-Type, api_key, Authorization
access-control-allow-methods: GET, POST, DELETE, PUT, PATCH, OPTIONS

to the response.

Running cors-it

After cloning this repo, run

$ cd cors-it
$ npm install

to resolve the dependencies. (See How to install npm if you are new to Node and npm.)

Set the PORT environment variable to an available port (for example, 9009; the default is 3000), and run cors-it with

$ PORT=9009 node index.js

Using cors-it

Pass a URL as the url query parameter

http://localhost:9009/?url=http://petstore.swagger.wordnik.com/api/api-docs

and cors-it will return that resource and its headers and add CORS headers.

You can test your cors-it proxy with curl(1):

curl -D - 'http://localhost:9009/?url=http://petstore.swagger.wordnik.com/api/api-docs'
HTTP/1.1 200 OK
X-Powered-By: Express
access-control-allow-origin: *
access-control-allow-headers: Content-Type, api_key, Authorization
date: Tue, 02 Dec 2014 20:01:43 GMT
access-control-allow-methods: GET, POST, DELETE, PUT, PATCH, OPTIONS
content-type: application/json; charset=utf-8
x-cache: MISS from inetgw47
transfer-encoding: chunked
via: 1.1 inetgw47 (squid)
connection: keep-alive

{"apiVersion":"1.0.0","swaggerVersion":"1.2","apis":[], ... }

If you are using swagger-editor, you can configure the editor to use your cors-it proxy in app/scripts/enums/defaults.js ; just change the value of importProxyUrl to your host/port, such as

 importProxyUrl: 'http://localhost:9009/?url='

Start cors-it as described above, then start swagger-editor. You should now be able to import a URL into swagger-editor from arbitrary URLs.

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