SVG file not displaying properly

[rieje]

Firefox displays an SVG file correctly. When opening with qimgv (nightly build), it shows the following error:

dpr= 1.3 pDpr= 1
Caught Exiv2 exception:
/test.svg: The file contains data of an unknown image type

qimgv displays it like this (I tried setting qimgv's background to white but it's just displaying it wrong), whereas Firefox displays it correctly like this.