Ask HN: Why Facebook API responses have `for (;;);` at the start of the JSON

Posted by monkhood on Monday January 29, 2024 @04:33AM
from the ask-hn dept.

An example API response:

`for (;;);{"payload":{"keys":[]}}`

( 1 comment | on HN )

Re:Ask HN: Why Facebook API responses have `for (;;);` at th... by ten13 on Monday January 29, 2024 @05:02AM (#39174619)

I suspect it’s designed to mitigate XSSI, Angular’s got one of the easiest to digest explanations[1].

[ Parent | on HN ]