Nothing shown, just a blank page

[AtaraxiaZ]

Hey, I configure the plugin in neovim and I am a newbee. I configure the plugin with lazyvim and the configuration is as below

  {
    "iamcco/markdown-preview.nvim",
    config = function()
      vim.g.mkdp_refresh_slow = 1
      vim.g.mkdp_open_to_the_world = 1
      vim.g.mkdp_open_ip = "127.0.0.1"
      vim.g.mkdp_echo_preview_url = 1
      vim.g.mkdp_port = "7777"
      vim.g.mkdp_page_title = "「${name}」"
      vim.g.mkdp_preview_options = {
        mkit = {},
        katex = {},
        uml = { server = "http://localhost:7777" },
        disable_sync_scroll = 0,
        sync_scroll_type = "middle",
        hide_yaml_meta = 1,
        sequence_diagrams = {},
        flowchart_diagrams = {},
        content_editable = false,
        disable_filename = 1,
      }
    end,
  },

But It just show a blank page in my browser, nothing render. If someone can help me, I will be truly grateful.

[AtaraxiaZ]

Thanks to this issue #120. Save my day.