Border width different depending on the length of the uri

[codibias]

Hallo,

I am using yaqrcode like this:
qrCode = yaqrcode(uri, { size: 225 });

The resulting qr-code seems to have a different width of the white border ("quiet zone") surrounding it. Is that correct? My expectation is to always get the same border, so I can extend it manually in html to a fixed size. But that's not possible if it differs that much.

Here are some examples with random URIs:

• http://tzgfewlnh.nzrdfgfdsaqzb.com:abc/znbvgfsaqe
  -> generates a QR-Code including a white border (see attached qr-code-1.gif)

• http://tzgfewlnh.nzrdfgfdsaqzb.com:abc/znbvgfsaqe/poiuhnbv/pmfewq
  -> generates a QR-Code with a very small border (see attached qr-code-2.gif)

• http://tzgfewlnh.nzrdfgfdsaqzb.com:abc/znbvgfsaqe/poiuhnbv/pmfewq/dsgfjhdgsfjdhsgfhjfg/ncvdskjfndskjn
  -> generates a QR-Code including a white border again (see attached qr-code-3.gif)

Thanks!

!