Nextcloud How to fix Nextcloud Refused to send form data to /login/v2/grant because it violates the following Content Security Policy directive: form-action 'self' Categories: Nextcloud, PHP Uli Köhler Uli Köhler 2020-02-09 · 0 min read How I fixed Nextcloud PHP Fatal error: Class contains 1 abstract method and must therefore be declared abstract Categories: Nextcloud, PHP Uli Köhler Uli Köhler 2019-05-12 · 1 min read