I became aware today of this technology www.mori.com/technology It is described as an edible protective layer, based on silk proteins. I am aware that edible film manufacturers are usually eager to obtain Kosher certification, even when they operate in regions without a significant Kosher consumer market segment, but this was not mentioned in their infomercial presentation.
Is this a potential problem? The consumer can hardly check the brand of the edible film, short of limiting ourselves to purchasing peelable fruits.
Thank you for the website
R A 
Esther Kruman 
Menashe Borbely
Silk protein is from silk, which is not a problem anyway.
It is not a problem.
In order to be a problem, if made from meat or not kosher fish, it would have to actually have the flavor of that not kosher meat or fish.
Try to imagine selling fruit or something with a flavor of meat.
Ignore it. It is fine.