I am coming to you from SFF.SE. Videos are a large resource to us for asking and answering questions. Our community is also known to be particular when it comes to spoiler alerts...
I recently tried to post answer (to a Game of Thrones question) with video confirmation of a large spoiler.
A workaround was used to by just linking the video instead of embedding it.
However, as seen in the same answer, we can apply spoiler tags to pictures.
My request is to be able apply spoiler tags to embedded videos.