[OpenLayers-Users] Uncaught TypeError: Cannot read property 'w' of null

[Juan Jesús Cremades Monserrat]

Hi,

I have a map which returns some data in a PopUp when the user clisk over
it. The problem is that when the click is in one area outside the map, I
obtain the next error:

Uncaught TypeError: Cannot read property 'w' of null


var mapSize = this.map.getSize(); in "Popup.js" at the API returns
'undefined' type. Exists some meaning to catch this error? Thanks
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