player.settings.volume can not be set on Chrome

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chrome

Hey friends i am implementing a player using HTML and i am setting the property for Player object in the following way..

player.settings.volume = obj.volume

in obj.volume i get integer value like 50.

the problem in the above statement is that it can not assign the value of obj.volume to player.settings.volume.
After this statement player.settings.volume become 0.

This statement works fine on Firefox and other browsers. But it only not working in Chrome.

Please help me out..!