In line 310 of xdg-open in the detectDE function it only checks for LDEX. In Lubuntu 11.10 the default $DESKTOP_SESSION="Lubuntu" and not "LDEX". Can this be added by including the line: "elif [ x"$DESKTOP_SESSION" = x"Lubuntu" ]; then DE=lxde;" please?
http://cgit.freedesktop.org/xdg/xdg-utils/commit/?id=7f784d0f825bad271703ed8dadb7218b4bf4c11e
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