Override volar handler but failed

init.lua

local on_windows = vim.loop.os_uname().version:match("Windows")

local function join_paths(...)
	local path_sep = on_windows and "\\" or "/"
	local result = table.concat({ ... }, path_sep)
	return result
end

local handlers = require("vim.lsp.handlers")
local function log(err, workspace_edit, ctx)
	vim.alert(ctx.method)
	print(ctx.method)
	handlers[ctx.method](err, workspace_edit, ctx)
end

vim.cmd([[set runtimepath=$VIMRUNTIME]])

local temp_dir = vim.loop.os_getenv("TEMP") or "/tmp"

vim.cmd("set packpath=" .. join_paths(temp_dir, "nvim", "site"))

local package_root = join_paths(temp_dir, "nvim", "site", "pack")
local install_path = join_paths(package_root, "packer", "start", "packer.nvim")
local compile_path = join_paths(install_path, "plugin", "packer_compiled.lua")

local function load_plugins()
	require("packer").startup({
		{
			"wbthomason/packer.nvim",
			"neovim/nvim-lspconfig",
		},
		config = {
			package_root = package_root,
			compile_path = compile_path,
		},
	})
end

_G.load_config = function()
	vim.lsp.set_log_level("debug")
	if vim.fn.has("nvim-0.5.1") == 1 then
		require("vim.lsp.log").set_format_func(vim.inspect)
	end
	local nvim_lsp = require("lspconfig")
	local on_attach = function(_, bufnr)
		local function buf_set_option(...)
			vim.api.nvim_buf_set_option(bufnr, ...)
		end

		buf_set_option("omnifunc", "v:lua.vim.lsp.omnifunc")

		-- Mappings.
		local opts = { buffer = bufnr, noremap = true, silent = true }
		vim.keymap.set("n", "gD", vim.lsp.buf.declaration, opts)
		vim.keymap.set("n", "gd", vim.lsp.buf.definition, opts)
		vim.keymap.set("n", "K", vim.lsp.buf.hover, opts)
		vim.keymap.set("n", "gi", vim.lsp.buf.implementation, opts)
		vim.keymap.set("n", "<C-k>", vim.lsp.buf.signature_help, opts)
		vim.keymap.set("n", "<space>a", vim.lsp.buf.code_action, opts)
		vim.keymap.set("n", "<space>wa", vim.lsp.buf.add_workspace_folder, opts)
		vim.keymap.set("n", "<space>wr", vim.lsp.buf.remove_workspace_folder, opts)
		vim.keymap.set("n", "<space>wl", function()
			print(vim.inspect(vim.lsp.buf.list_workspace_folders()))
		end, opts)
		vim.keymap.set("n", "<space>D", vim.lsp.buf.type_definition, opts)
		vim.keymap.set("n", "<space>rn", vim.lsp.buf.rename, opts)
		vim.keymap.set("n", "gr", vim.lsp.buf.references, opts)
		vim.keymap.set("n", "<space>e", vim.diagnostic.open_float, opts)
		vim.keymap.set("n", "[d", vim.diagnostic.goto_prev, opts)
		vim.keymap.set("n", "]d", vim.diagnostic.goto_next, opts)
		vim.keymap.set("n", "<space>q", vim.diagnostic.setloclist, opts)
	end

	-- Add the server that troubles you here
	local name = "volar"
	-- local cmd = { "volar" } -- needed for elixirls, omnisharp, sumneko_lua
	if not name then
		print("You have not defined a server name, please edit minimal_init.lua")
	end
	if not nvim_lsp[name].document_config.default_config.cmd and not cmd then
		print([[You have not defined a server default cmd for a server
      that requires it please edit minimal_init.lua]])
	end

	nvim_lsp[name].setup({
		-- cmd = cmd,
		on_attach = on_attach,

		handlers = {
			-- log,
			["textDocument/codeAction"] = log,
			["textDocument/rename"] = log,
			["workspace/applyEdit"] = log,
		},
	})

	print(
		[[You can find your log at $HOME/.cache/nvim/lsp.log. Please paste in a github issue under a details tag as described in the issue template.]]
	)
end

if vim.fn.isdirectory(install_path) == 0 then
	vim.fn.system({ "git", "clone", "https://github.com/wbthomason/packer.nvim", install_path })
	load_plugins()
	require("packer").sync()
	vim.cmd([[autocmd User PackerComplete ++once lua load_config()]])
else
	load_plugins()
	-- require("packer").sync()
	_G.load_config()
end