尝试了几种不同的方法，例如：

• 更新/etc/hosts
• 清除Chrome chrome://net-internals/#dns的DNS
• 从chrome://net-internals/#hsts删除域

在chrome：//net-internals/#events中创建了一个netlogs，然后查看了不同的事件，找到了解决方案。找到了这个：

t=18295 [st=0] +SOCKET_ALIVE  [dt=4]
                --> source_dependency = 5112 (TRANSPORT_CONNECT_JOB)
t=18295 [st=0]   +TCP_CONNECT  [dt=1]
                  --> address_list = ["[::1]:80","127.0.0.1:80"]
                  --> canonical_name = ""
t=18295 [st=0]      TCP_CONNECT_ATTEMPT  [dt=1]
                    --> address = "[::1]:80"
t=18296 [st=1]   -TCP_CONNECT
                  --> source_address = "[::1]:56378"
t=18296 [st=1]   +SOCKET_IN_USE  [dt=3]
                  --> source_dependency = 5111 (HTTP_STREAM_JOB)
t=18296 [st=1]      SOCKET_BYTES_SENT
                    --> byte_count = 719
t=18298 [st=3]      SOCKET_READ_ERROR
                    --> net_error = -101 (ERR_CONNECTION_RESET)
                    --> os_error = 54
t=18299 [st=4]   -SOCKET_IN_USE
t=18299 [st=4]    SOCKET_POOL_CLOSING_SOCKET
                  --> reason = "Connection was closed when it was returned to the pool"
t=18299 [st=4] -SOCKET_ALIVE

Chrome似乎默认为IPv6。

解决方案在nginx站点配置中添加listen [::]:80 ipv6only=off;，重启nginx。

修复MySQL Socket localhost vs 127.0.0.1错误

套接字是一个允许MySQL客户端/服务器通信的文件。链接MySQL放置套接字的位置和macOS认为它应该在的位置可以解决这个问题。MySQL将套接字放在/tmp中，macOS在/var/mysql中查找它。在终端中运行以下命令，这应该可以解决问题

sudo mkdir /var/mysql

sudo ln -s /tmp/mysql.sock /var/mysql/mysql.sock