[PATCH] mshtml: Don't crash creating a URI if we have no document

[Jacek Caban]

Signed-off-by: Jacek Caban <jacek at codeweavers.com>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.winehq.org/pipermail/wine-patches/attachments/20160819/d04cfcc9/attachment.html>