如何修复 Nextcloud Refused to send form data to /login/v2/grant because it violates the following Content Security Policy directive: form-action 'self'
问题：
尝试使用 Nextcloud 客户端连接时，在 Flow v2 授权步骤中你在浏览器中打开页面以授权客户端，你在 JS 控制台中看到类似这样的错误消息
nextcloud-form-action-error.txt
Refused to send form data to 'http://nextcloud.mydomain.com/login/v2/grant' because it violates the following Content Security Policy directive: "form-action 'self'".解决方案
添加
config-php-snippet.php
'overwriteprotocol' => 'https',在此行之后：
config-version-line.php
'version' => '18.0.0.10',在你的 nextcloud/config/config.php 中。
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