MarkdownPreview opens two browsers when using a custom browser on macOS

Describe the bug My default browser is Arc, but I want the preview to open in Safari, so I do:

vim.g.mkdp_browser = "/Applications/Safari.app"

within the init function of Lazy.nvim. It does work, but now my default browser AND safari open when I run MarkdownPreview.

To Reproduce

local M = { "iamcco/markdown-preview.nvim" }

M.name = "markdown_preview_nvim"
M.lazy = true
M.cond = true

M.init = function()
    vim.g.mkdp_filetypes = { "markdown" }
    vim.g.mkdp_auto_close = 0
    vim.g.mkdp_browser = "/Applications/Safari.app"
end

M.build = "cd app && yarn install"

M.ft = { "markdown" }

return M

Expected behavior It should open only Safari.

Desktop (please complete the following information):

OS: macOS

Log:

mkdp: health#mkdp#check

- Platform: macos
- Nvim Version: NVIM v0.10.0
  Build type: Release
  LuaJIT 2.1.1716656478
  Run "nvim -V1 -v" for more info
- Node version: v20.14.0
- Script: /Users/marty/.local/share/nvim/lazy/markdown_preview_nvim/app/server.js
- Script exists: 1
- OK Using node

Additional comments

I found https://github.com/iamcco/markdown-preview.nvim/blob/a923f5fc5ba36a3b17e289dc35dc17f66d0548ee/src/util/opener.ts#L37 so it's now clear that it will use open -a to open the URL, so I put vim.g.mkdp_browser = "Safari", but the behavior is the same.

iamcco / markdown-preview.nvim

MarkdownPreview opens two browsers when using a custom browser on macOS #675