Pretty JSON is still just JSON. It should work with any JSON parser. Of course if it is being fed from one system to another there is no need to make the JSON anything other than compact one line JSON. Pretty is for human consumption.

Outside of pretty printing - MySQL breaks your app if you depend on key order in an object because it alphabetically sorts object keys when you store it in a JSON column.

JavaScript itself will also sort object keys if they are numeric, so `{a: "a", c: "c", b: "b", "1": 1};` will be transformed to `{1: 1, a: "a", c: "c", b: "b"}`.