476480 - JSON.stringify doesn't serialize array in object properly

Status: RESOLVED WONTFIX

(Core :: JavaScript Engine, defect)

Description

[yorickvanpelt]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.1b2) Gecko/20081201 Firefox/3.1b2
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.1b2) Gecko/20081201 Firefox/3.1b2

When trying to serialize an array inside an object, it is made a string instead of an array.

Reproducible: Always

Steps to Reproduce:
1.execute JSON.stringify({a:[1,2,3]})
Actual Results:  
returns {"a":"[1, 2, 3]"}

Expected Results:  
returns {"a": [1, 2, 3]}

Comment 1

[yorickvanpelt]

Note: with some further testing, this only seems to happen when prototype.js is loaded.

Comment 2

[Brendan Eich [:brendan]]

Related to bug 469627 ?

/be

Comment 3

[Robert Sayre]

(In reply to comment #2)
> Related to bug 469627 ?

I don't think so. It would help to know whether IE8 suffers a similar incompatibility.

Comment 4

[yorickvanpelt]

Possibly related to bug 465371 , as prototype adds functions to Array.prototype

Comment 5

[yorickvanpelt]

Ah, Prototype defines an Array.prototype.toJSON method, which returns a json string. Firefox expects that method to return an object, and stringifies the string instead.