No.... I think that is my fault. My putting the game up here is a bit of a hack as it is an iframe in an iframe. AFAICT that border is appearing as a default iframe styling of the browser. I should remove the styling.
As part of my work packaging up the game for electron and phonegap I have been working to make all assets static. Once I have that build process working (https://drone.soapbubble.online/) then I can upload actual static assets for the game which is more in the spirit of how web game uploads are supposed to work.