requests-proxy is a NodeJS proxy server that adds request/response headers to the proxied request.

It allow you to append/remove request and response headers as you want to.

Just send a request to https://yourproxydomain.com/proxy and the following supported queries:

• url (Required) - Proxy target.
  Note: URL must be encoded to work correctly
• ignoreReqHeaders - If set, the request headers sent from browser will be ignore.
  Example: ignoreReqHeaders=true
• followRedirect - Follow redirect if true, otherwise send raw redirect response.
  Example: followRedirect=true
• redirectWithProxy - If set, the server will add proxy to the redirect location.
  Example: redirectWithProxy=true
• decompress - If set, no decompress would be done. return back the non-compressed response.
  Example: decompress=true
• appendReqHeaders - If set, these headers will be appended to the request headers.
  Note: It will override the header if it exists.
  Example: appendReqHeaders=[["referer": "https://google.com"], ["origin": "https://google.com"]]
• appendResHeaders - If set, these headers will be appended to the response headers.
  Example: appendResHeaders=[["content-type": "text/plain"]]
• deleteReqHeaders - If set, these headers will be removed from the request headers.
  Example: deleteReqHeaders=["origin"]
• deleteResHeaders - If set, these headers will be removed from the response headers.
  Example: deleteResHeaders=["set-cookie"]

CORS applied to * by default, you can override it with appendReqHeaders

git clone https://github.com/hoangvu12/requests-proxy
cd requests-proxy
npm install
npm start

• http://yourproxydomain.com/proxy?url=http%3A%2F%2Fgoogle.com - Google.com with CORS headers

• http://yourproxydomain.com/proxy?url=http%3A%2F%2Fgoogle.com&appendResHeaders=[["content-type": "text/plain"]] - Request Google.com as text

• http://yourproxydomain.com/proxy?url=http%3A%2F%2Fgoogle.com&deleteResHeaders=["set-cookie"] - Remove Google.com cookies

• CORS bridged
• cors-anywhere
• Whatever Origin
• Go Between
• goxcors
• YaCDN
• All Origins
• Cloudflare Cors Anywhere
• JSONProxy

@jimmywarting - A great gist about CORS Proxies