iOS7 UIWebView Memory leak

Question

We have an comprehensive iOS app with Hybrid mode - a UIWebView hold the major part of the web application in JS. It works fine on iOS6, but recently we found serious out of mem

Answer 1

I don't have enough reputation to upvote or comment. So I think an "answer" is the only way that I can contribute.

I agree with Ming Zhu's contribution. I found that if you have 5 digit keys (9999 < key <= 99999) the memory usage on iOS 7 explodes.

Below is the example code that I came to when trying to reproduce what was crashing my app.

tempobj = {};

for(var i=1; i<2000; i++){
    var temp = {};
    tempobj[i] = temp;
    temp[98304] = "hello world";
}

I did also submit a bug to apple before finding this stackoverflow, but looks like that is a good thing anyways.