Comment 2 for bug 169802

Originator: YES

Yes, envelope must be first - and I mentioned it in my post. Built-in help
is wrong, and I'll fix it in next release.
Warnings are issued by Inkscape. There are several possible fixes:
1) fix inkscape - should add .svg to temp file name passed to extension
2) rename file in extension (add .svg)
3) redirect inkscape's stderr (but user will not see possible error
messages from inkscape)

Result you are getting is very strange - for me it works fine. What
inkscape version are you using? I tested with 0.44.1
I attached my result.