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A CakePHP (3.3.x) plugin for activate cors domain in your application

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v2.0.0 2020-05-14 16:20 UTC

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Last update: 2021-10-14 22:57:45 UTC


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A CakePHP (4+) plugin for activate cors domain in your application with Middleware.

Learn more about CORS

For cake 3.3+ use branch cake-3


  • PHP version 7.2 or higher
  • CakePhp 4.0 or higher


You can install this plugin into your CakePHP application using composer.

The recommended way to install composer packages is:

composer require ozee31/cakephp-cors

Quick Start

Loading the Plugin

// In src/Application.php
public function bootstrap(): void
    // code ...

By default the plugin authorize cors for all origins, all methods and all headers and caches all for one day.


Default configuration

    'AllowOrigin' => true, // accept all origin
    'AllowCredentials' => true,
    'AllowMethods' => ['GET', 'POST', 'PUT', 'PATCH', 'DELETE'], // accept all HTTP methods
    'AllowHeaders' => true, // accept all headers
    'ExposeHeaders' => false, // don't accept personal headers
    'MaxAge' => 86400, // cache for 1 day
    'exceptionRenderer' => 'Cors\Error\AppExceptionRenderer', // Use ExeptionRenderer class of plugin

Change config

In app.php add :

'Cors' => [
    // My Config

AllowOrigin (Access-Control-Allow-Origin)

A returned resource may have one Access-Control-Allow-Origin header, with the following syntax:

'Cors' => [
    // Accept all origins
    'AllowOrigin' => true,
    // OR
    'AllowOrigin' => '*',

    // Accept one origin
    'AllowOrigin' => 'http://flavienbeninca.fr'

    // Accept many origins
    'AllowOrigin' => ['http://flavienbeninca.fr', 'http://google.com']

AllowCredentials (Access-Control-Allow-Credentials)

The Access-Control-Allow-Credentials header Indicates whether or not the response to the request can be exposed when the credentials flag is true. When used as part of a response to a preflight request, this indicates whether or not the actual request can be made using credentials. Note that simple GET requests are not preflighted, and so if a request is made for a resource with credentials, if this header is not returned with the resource, the response is ignored by the browser and not returned to web content.

'Cors' => [
    'AllowCredentials' => true,
    // OR
    'AllowCredentials' => false,

AllowMethods (Access-Control-Allow-Methods)

'Cors' => [
    // string
    'AllowMethods' => 'POST',
    // OR array
    'AllowMethods' => ['GET', 'POST'],

AllowHeaders (Access-Control-Allow-Headers)

The Access-Control-Allow-Headers header is used in response to a preflight request to indicate which HTTP headers can be used when making the actual request.

'Cors' => [
    // accept all headers
    'AllowHeaders' => true,

    // accept just authorization
    'AllowHeaders' => 'authorization',

    // accept many headers
    'AllowHeaders' => ['authorization', 'other-header'],

ExposeHeaders (Access-Control-Expose-Headers)

The Access-Control-Expose-Headers header lets a server whitelist headers that browsers are allowed to access. For example:

'Cors' => [
    // nothing
    'ExposeHeaders' => false,

    // string
    'ExposeHeaders' => 'X-My-Custom-Header',

    // array
    'ExposeHeaders' => ['X-My-Custom-Header', 'X-Another-Custom-Header'],

MaxAge (Access-Control-Max-Age)

The Access-Control-Max-Age header indicates how long the results of a preflight request can be cached. For an example of a preflight request, see the above examples.

'Cors' => [
    // no cache
    'MaxAge' => false,

    // 1 hour
    'MaxAge' => 3600,

    // 1 day
    'MaxAge' => 86400,


This option overload default exceptionRenderer in app.php.

By default this class extends from Error.exceptionRenderer to add Cors Headers

If you don't want to overload exceptionRenderer, You must write

'Cors' => [
	'exceptionRenderer' => false

Read more