Cannot make the request from the other domain.

[jamesweb1]

I have the other php server and want to make the http get to this waffle lua server. But it always displays the following error:
XMLHttpRequest cannot load http://[LUA SERVER]/query?q=hi. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://[PHP SERVER]' is therefore not allowed access. The response had HTTP status code 502.

How to make the lua support the Access-Control-Allow-Origin?

[benglard]

I believe you just have to set a few headers which you can do with res.header. See this webpage for more: https://developer.mozilla.org/en-US/docs/Web/HTTP/Access_control_CORS