Should I need to use double backslash for special characters in JSON?

Hi all,

I’ve read the following example and I am embarrasing at why \n is not acceptable. I think \n is just enough but they said it was wrong and use \\n instead?
Which one is correct?

Thanks in advance!

Question

This forum is for usage of the http://jsonapi.org/ spec, it seems like this is a generic question about JSON as a format. I’d suggest you post to StackOverflow instead. Thanks!