The expression as shown above probably won't work, because of the characters '<' and '>' in your command line argument.
QV needs to be parsed a string for the Link representation, with following structure:
I think the delimiter <url>, or more precisely the characters '<','>' will be parsed by QV, but this is probably breaking your command line string (i.e. breaking the interpretation as Link). Just give it a try (for comparison, try a string like