small-cor

Very light weight middleware for Express which makes cross origin resource sharing easy.

Installation

npm install small-cor

Sample Usage

var express = require('express');
var app = express();
var smallCOR = require('small-cor');

app.use(smallCOR({
    origin : '*',
	methods : ['GET'],
	headers : ['X-Custom']
}));

app.get('/', function(req, res){
  res.json({message : 'hello'});
});

app.listen(3000);

An HTTP GET request to localhost:3000 will result in HTTP response which contains the following headers:

Access-Control-Allow-Headers:X-Custom
Access-Control-Allow-Methods:GET
Access-Control-Allow-Origin:*

Options

• origin (string): URI of allowed origin. i.e. '*' or 'http://mysite.com'
• methods (array): Array of strings containing permitted HTTP verbs i.e. ['GET'] or ['GET','POST']
• headers (array): Array of strings containing permitted HTTP headers i.e. ['X-Custom'] or ['X-Custom', 'X-PingPong']
• credentials (bool): Boolean indicating if browser will allow creditials to be sent.