javascript - Window object cleared on $Interval -

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i'm experiencing rather weird behavior when trying log window object defined $window.open() in angularjs within $interval

self = $scope.childwindow = $window.open(authservice.buildauthorizeurl(), '_blank') console.log $scope.childwindow var1 = "i may not work" self.var2 = 'i should work' privatedata.authinterval = $interval ->   console.log $scope.childwindow   console.log var1   console.log self.var2 ,   1000

output

window {document: document, window: window, frameelement: null, clientinformation: navigator, onhashchange: null…} window {} may not work should work window {} may not work should work

as can see, first console.log $scope.childwindow outputting defined window object. others, inside $interval, outputting {}. i've tried not attaching childwindow $scope object, , i've tried attaching self. i've tried following this example , experienced same behavior. have idea why happening? much.

jsfiddle demo: http://jsfiddle.net/u3pvm/15124/

i tried code in browser , while setting debug point inside $interval function empty object getting logged in console watch inspector on right shows $scope.childwindow not empty. might able use $scope.childwindow.

enter image description here


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