Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

docs(readme): updates the variables for the new implementations of the ES2015 (ES6) #257

Closed
wants to merge 1 commit into from
Closed

docs(readme): updates the variables for the new implementations of the ES2015 (ES6) #257

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Jump to
Jump to file
Failed to load files.
Diff view
Diff view
50 changes: 25 additions & 25 deletions README.md
View file
Open in desktop
Expand Up @@ -37,9 +37,9 @@ $ npm install cors
### Simple Usage (Enable *All* CORS Requests)

```javascript
var express = require('express')
var cors = require('cors')
var app = express()
const express = require('express')
const cors = require('cors')
const app = express()

app.use(cors())

Expand All @@ -55,9 +55,9 @@ app.listen(80, function () {
### Enable CORS for a Single Route

```javascript
var express = require('express')
var cors = require('cors')
var app = express()
const express = require('express')
const cors = require('cors')
const app = express()

app.get('/products/:id', cors(), function (req, res, next) {
res.json({msg: 'This is CORS-enabled for a Single Route'})
Expand All @@ -71,11 +71,11 @@ app.listen(80, function () {
### Configuring CORS

```javascript
var express = require('express')
var cors = require('cors')
var app = express()
const express = require('express')
const cors = require('cors')
const app = express()

var corsOptions = {
const corsOptions = {
origin: 'http://example.com',
optionsSuccessStatus: 200 // some legacy browsers (IE11, various SmartTVs) choke on 204
}
Expand Down Expand Up @@ -105,11 +105,11 @@ This function is designed to allow the dynamic loading of allowed origin(s) from
a backing datasource, like a database.

```javascript
var express = require('express')
var cors = require('cors')
var app = express()
const express = require('express')
const cors = require('cors')
const app = express()

var corsOptions = {
const corsOptions = {
origin: function (origin, callback) {
// db.loadOrigins is an example call to load
// a list of origins from a backing database
Expand Down Expand Up @@ -138,9 +138,9 @@ pre-flighting, you must add a new OPTIONS handler for the route you want
to support:

```javascript
var express = require('express')
var cors = require('cors')
var app = express()
const express = require('express')
const cors = require('cors')
const app = express()

app.options('/products/:id', cors()) // enable pre-flight request for DELETE request
app.del('/products/:id', cors(), function (req, res, next) {
Expand All @@ -165,14 +165,14 @@ routes.
### Configuring CORS Asynchronously

```javascript
var express = require('express')
var cors = require('cors')
var app = express()

var allowlist = ['http://example1.com', 'http://example2.com']
var corsOptionsDelegate = function (req, callback) {
var corsOptions;
if (allowlist.indexOf(req.header('Origin')) !== -1) {
const express = require('express')
const cors = require('cors')
const app = express()

const corsOriginsWhiteList = ['http://example1.com', 'http://example2.com']
const corsOptionsDelegate = function (req, callback) {
let corsOptions;
if (corsOriginsWhiteList.indexOf(req.header('Origin')) !== -1) {
corsOptions = { origin: true } // reflect (enable) the requested origin in the CORS response
} else {
corsOptions = { origin: false } // disable CORS for this request
Expand Down