什么是json_encode unescape斜杠的好处?

Hello some time ago i had the expertslead test and saw that they want unescaped slashes, normal json_encode generate the following:

"https:\/\/stackoverflow.com\/"

but they want the version with JSON_UNESCAPED_SLASHES

"https://stackoverflow.com/"

Can anyone explaine me why? whats the benefits of it? normaly the libs does a correct interpretation of it