I have some problem to create a book with clickable text
The book is create but i can't click..

See :

/minecraft:give @p written_book 1 0 {pages:["{\"text\":\"\",\"extra\":[{\"text\":\"seed\",\"clickEvent\":{\"action\":\"run_command\",\"value\":\"/seed\"}}]}"],title:Book,author:me}

That give me a book with title, author, text but when i click on, nothing! =)

It's a bug ? I fail somewhere ?