problem.js

#!/usr/bin/env node

// Reduction of corrupted JSON bug, Object.freeze is broken
//
// Related? http://groups.google.com/a/chromium.org/group/chromium-bugs/browse_thread/thread/d9b1ff90110eda2d

console.log('Good JSON: ' + JSON.stringify({x: null}))
var i = 0
while (true) {
    Object.freeze({})
    if (++i % 1000 === 0) console.log(i)
    if (JSON.stringify({x: null}).match(/\0/)) {
        console.log('Bad JSON after ' + i + ' iterations: ' + JSON.stringify({x: null}))
        break
    }
}