I checked.

I checked in autoload/vimwiki/base.vim
vimwiki#base#system_open_link(url)
and tried "echo a:url" and "url". Check the command.

I confirmed that vimwiki is running on the cmd shell,
and I ran the same command on cmd.

If I do start "Title" /B h:\home\user\vimwiki_html\weeks\25-17.html
it runs well on Chrome.

Even if I remove Title /B, it works well.

When I go back to vim and use ex command silent ! start "Title" /B url, it doesn't run.

When I remove "Title" /B, it works normally.

So for now, I'm using it after deleting "Title" /B.

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