Laravel-swoole: laravel.ERROR: Cannot modify header information - headers already sent

[gliese436-b]

Make sure you read Issues Guideline and answer these questions before submitting your issue. Thanks!
(Any non-English issues will be closed immediately.)

1. Please provide your PHP and Swoole version. (php -v and php --ri swoole)

PHP：7.3.2
Swoole：4.4.8

1. Please provide your Laravel/Lumen version.

Laravel：6.2

1. Which release version of this package are you using?

   "swooletw/laravel-swoole": "^2.6"

2. What did you do? If possible, provide a recipe for reproducing the error.

   setcookie('token',null,time() - 1,'/','.test.cn');

OR

header("Location:https://xxx.comt");

1. What did you expect to see?

2. What did you see instead?

laravel.ERROR: Cannot modify header information - headers already sent

[mxp100]

use via response, this is bug of laravel (not laravel-swoole)
Example: response()->cookie() or response()->header()

[Arkanius]

As @mxp100 said, after start using swoole you need to use Laravel's response, request, etc.

Check: https://github.com/swooletw/laravel-swoole/wiki/Z1.-Notices