Implements https://github.com/fruitcake/php-cors for Laravel
Since Laravel 9.2, this Middleware is included in laravel/framework. You can use the provided middleware, which should be compatible with the Middleware and config provided in this package. See https://github.com/laravel/laravel/pull/5825/files for the changes.
The laravel-cors
package allows you to send Cross-Origin Resource Sharing
headers with Laravel middleware configuration.
If you want to have a global overview of CORS workflow, you can browse this image.
When upgrading from 0.x versions, there are some breaking changes:
- A new 'paths' property is used to enable/disable CORS on certain routes. This is empty by default, so fill it correctly!
- Group middleware is no longer supported, use the global middleware
- The vendor name has changed (see installation/usage)
- The casing on the props in
cors.php
has changed from camelCase to snake_case, so if you already have acors.php
file you will need to update the props in there to match the new casing.
- Handles CORS pre-flight OPTIONS requests
- Adds CORS headers to your responses
- Match routes to only add CORS to certain Requests
Require the fruitcake/laravel-cors
package in your composer.json
and update your dependencies:
composer require fruitcake/laravel-cors
If you get a conflict, this could be because an older version of barryvdh/laravel-cors or fruitcake/laravel-cors is installed. Remove the conflicting package first, then try install again:
composer remove barryvdh/laravel-cors fruitcake/laravel-cors
composer require fruitcake/laravel-cors
To allow CORS for all your routes, add the HandleCors
middleware at the top of the $middleware
property of app/Http/Kernel.php
class:
protected $middleware = [
\Fruitcake\Cors\HandleCors::class,
// ...
];
Now update the config to define the paths you want to run the CORS service on, (see Configuration below):
'paths' => ['api/*'],
The defaults are set in config/cors.php
. Publish the config to copy the file to your own config:
php artisan vendor:publish --tag="cors"
Note: When using custom headers, like
X-Auth-Token
orX-Requested-With
, you must set theallowed_headers
to include those headers. You can also set it to['*']
to allow all custom headers.
Note: If you are explicitly whitelisting headers, you must include
Origin
or requests will fail to be recognized as CORS.
Option | Description | Default value |
---|---|---|
paths | You can enable CORS for 1 or multiple paths, eg. ['api/*'] |
[] |
allowed_origins | Matches the request origin. Wildcards can be used, eg. *.mydomain.com or mydomain.com:* |
['*'] |
allowed_origins_patterns | Matches the request origin with preg_match . |
[] |
allowed_methods | Matches the request method. | ['*'] |
allowed_headers | Sets the Access-Control-Allow-Headers response header. | ['*'] |
exposed_headers | Sets the Access-Control-Expose-Headers response header. | false |
max_age | Sets the Access-Control-Max-Age response header. | 0 |
supports_credentials | Sets the Access-Control-Allow-Credentials header. | false |
allowed_origins
, allowed_headers
and allowed_methods
can be set to ['*']
to accept any value.
Note: For
allowed_origins
you must include the scheme when not using a wildcard, eg.['http://example.com', 'https://example.com']
. You must also take into account that the scheme will be present when usingallowed_origins_patterns
.
Note: Try to be a specific as possible. You can start developing with loose constraints, but it's better to be as strict as possible!
Note: Because of http method overriding in Laravel, allowing POST methods will also enable the API users to perform PUT and DELETE requests as well.
Note: Sometimes it's necessary to specify the port (when you're coding your app in a local environment for example). You can specify the port or using a wildcard here too, eg.
localhost:3000
,localhost:*
or even using a FQDNapp.mydomain.com:8080
On Lumen, just register the ServiceProvider manually in your bootstrap/app.php
file:
$app->register(Fruitcake\Cors\CorsServiceProvider::class);
Also copy the cors.php config file to config/cors.php
and put it into action:
$app->configure('cors');
To allow CORS for all your routes, add the HandleCors
middleware to the global middleware and set the paths
property in the config.
$app->middleware([
// ...
Fruitcake\Cors\HandleCors::class,
]);
Make sure the path
option in the config is correct and actually matches the route you are using. Remember to clear the config cache as well.
Sometimes errors/middleware that return own responses can prevent the CORS Middleware from being run. Try changing the order of the Middleware and make sure it's the first entry in the global middleware, not a route group. Also check your logs for actual errors, because without CORS, the errors will be swallowed by the browser, only showing CORS errors. Also try running it without CORS to make sure it actually works.
If your Request includes an Authorization header or uses Credentials mode, set the supports_credentials
value in the config to true. This will set the Access-Control-Allow-Credentials Header to true
.
If you echo()
, dd()
, die()
, exit()
, dump()
etc in your code, you will break the Middleware flow. When output is sent before headers, CORS cannot be added. When the scripts exits before the CORS middleware finished, CORS headers will not be added. Always return a proper response or throw an Exception.
If possible, use a route group with CSRF protection disabled.
Otherwise you can disable CSRF for certain requests in App\Http\Middleware\VerifyCsrfToken
:
protected $except = [
'api/*',
'sub.domain.zone' => [
'prefix/*'
],
];
The CORS Middleware should be the only place you add these headers. If you also add headers in .htaccess, nginx or your index.php file, you will get duplicate headers and unexpected results.
Released under the MIT License, see LICENSE.