From BBC News:
Asked about the secrecy surrounding the script, Abrams added: "We did the best we can to preserve the story for the audience, but it doesn't always work.
"There are a ton of rumours - some true, some false. But I'm grateful for everyone who would want to read a spoiler because it means that they care and want to see the movie.
"I know what it feels like, as an enormous Star Wars fan myself."