Broken array access on NPObjects?

[obs_sergio]

On some versions of QtWebkit the access of NPObjects via the '[]' operator seems to be broken:

• if the index in the [] operator is a number, there is no interaction with the plugin and it does not receive calls to HasProperty, GetProperty, HasMethod or Invoke;

• if the index is a string (e.g. array["1"]) everything works as expected;

I saw this problem on:

• Qt 4.8.6 distributed on Ubuntu

• Qt 5.2.0 (I compiled it for an embedded platform)