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srikanthguduru / simile-widgets

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please remove eval from timeline_source_v2.3.0.zip\timeline_2.3.0\src\webapp\api\scripts\timeline.js #497

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
Issue summary:
https://groups.google.com/forum/#!topic/simile-widgets/j0Fmgtcrke8

I have been a user of timeline.js for over a year now and must say I really 
impressed by it and its community.

I have query regarding the use of eval in src\webapp\api\scripts\timeline.js.

I read a lot about eval being bad and all, so was wondering can you not replace 
the use of eval in Timeline.loadJSON && Timeline._Impl.prototype.loadJSON 
method with something like this for peace of mind:

xhr.onreadystatechange = function() {
  if (xhr.readyState == 4) {
    // JSON.parse does not evaluate the attacker's scripts.
    var resp = JSON.parse(xhr.responseText);
  }
}

Source: Cross-Origin XMLHttpRequest
http://developer.chrome.com/extensions/xhr.html

Original issue reported on code.google.com by ddas...@gmail.com on 8 Aug 2013 at 9:01

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