Why Does My Laravel 5.5 AJAX Call Return a '419 (Unknown Status)' Error?

Laravel 5.5 AJAX Call Returns "419 (Unknown Status)

Introduction

When performing AJAX calls in Laravel 5.5, encountering a "419 (Unknown Status)" error can be frustrating. This error often indicates a Cross-Site Request Forgery (CSRF) protection issue. This article explores the cause of this error and provides a comprehensive solution to resolve it.

Understanding CSRF Protection

Laravel employs CSRF protection to safeguard against unauthorized actions initiated through external requests. It involves validating that the request comes from a legitimate source, preventing malicious actors from executing malicious actions on a user's behalf.

Resolving the "419" Error

In the absence of a form in your code, the error arises because the token provided in the AJAX request does not match the one stored in the session. To fix this, you need to ensure that your application is generating the CSRF token and including it in the AJAX request correctly.

Solution

1. Add CSRF Meta Tag

Include the following meta tag in your HTML's head section:

<meta name="csrf-token" content="{{ csrf_token() }}">

This meta tag generates a unique CSRF token and stores it in the browser's session.

2. Configure AJAX Request

Update your AJAX request to retrieve the CSRF token from the meta tag:

$.ajax({
  url: '/fetch-company/' + companyId,
  method: 'POST',
  headers: {
    'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content'),
  },
  ...
});

3. Enable CSRF Protection

Ensure that CSRF protection is enabled in your Laravel application by checking the app/Http/Middleware/VerifyCsrfToken.php middleware. It should be added to the $middlewareGroups['web'] array in the kernel.php file.

Conclusion

By implementing these steps, you can effectively resolve the "419 (Unknown Status)" error when making AJAX calls in Laravel 5.5. Remember, CSRF protection is crucial for maintaining the security of your web application, so it is essential to follow these guidelines carefully. Refer to the official Laravel documentation for further insights into CSRF protection.

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