A Flarum extension. Adds a [Spoiler] BBCode.
Wrap the text or elements you want to hide with the Spoiler BBCode:
[SPOILER]Your Text.[/SPOILER]
To change the text of the spoiler warning use Flagrow Linguist.
Use Bazaar or install manually with composer:
composer require kvothe/spoiler-bbcodecomposer update kvothe/spoiler-bbcode
php flarum cache:clear