如何从url字符串中获取html响应？使用这个:
#lang racket
(require net/url)
(require net/websocket/client)
(define google (string->url "http://google.com"))
(ws-connect(struct-copy url google [scheme "ws"]))
给我 ws-connect: Invalid server handshake response. Expected #"\242\266\336\364\360\"\21~Y\347w\21L\2326\"", got #"<!DOCTYPE html>\n"