application/ov-idraw; drawtool %s
It would also work to download a copy of http://www.ivtools.org/ivtools/anteaters.drs and launch drawtool by hand like this:
drawtool anteaters.drs
ivtools-0.7.4 added support for asynchronous incremental download of rasters by URL. Now you
can watch the images download while panning or zooming the viewer, and draw, move, scale, and resize any graphic (including the downloading rasters).
After the download is finished you can even undo all your changes to get back to an unmodified fully
loaded drawing.
Images embedded in the collage are downloaded by URL from these
educational, civic or free software sources: