Python服务器的javascript客户端:XMLHttpRequest responseText在Get请求后为空
我正在尝试编写一个能够向python服务器脚本发送/接收数据的chrome扩展。目前,js脚本正在发出GET请求,唯一的问题是.responseText始终为空(即使python脚本使用文本进行响应) popup.jsPython服务器的javascript客户端:XMLHttpRequest responseText在Get请求后为空,javascript,python,xmlhttprequest,responsetext,basehttpserver,Javascript,Python,Xmlhttprequest,Responsetext,Basehttpserver,我正在尝试编写一个能够向python服务器脚本发送/接收数据的chrome扩展。目前,js脚本正在发出GET请求,唯一的问题是.responseText始终为空(即使python脚本使用文本进行响应) popup.js document.addEventListener('DOMContentLoaded', function() { var xhr = new XMLHttpRequest(); xhr.onreadystatechange = function() {
document.addEventListener('DOMContentLoaded', function() {
var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function() {
if (xhr.readyState == xhr.DONE) {
var resptxt = xhr.responseText;
if (resptxt) {
document.getElementById('texthtm').innerHTML = resptxt;
} else {
document.getElementById('texthtm').innerHTML = "no response";
}
}
}
xhr.open("GET", "http://127.0.0.1:80", true);
xhr.send();
});
server.py
import time
import BaseHTTPServer
from SimpleHTTPServer import SimpleHTTPRequestHandler
HOST_NAME = "127.0.0.1"
PORT_NUMBER = 80
class MyHandler(BaseHTTPServer.BaseHTTPRequestHandler):
def do_HEAD(self):
self.send_response(200)
self.send_header("Content-type", "text/plain")
self.end_headers()
def do_GET(self):
self.send_response(200)
self.send_header("Content-type", "text/plain")
self.end_headers()
self.wfile.write("heyyy")
if __name__ == "__main__":
server_class = BaseHTTPServer.HTTPServer
httpd = server_class((HOST_NAME, PORT_NUMBER), MyHandler)
print time.asctime(), "Server Starts - %s:%s" % (HOST_NAME, PORT_NUMBER)
try:
httpd.serve_forever()
except KeyboardInterrupt:
pass
httpd.server_close()
print time.asctime(), "Server Stops - %s:%s" % (HOST_NAME, PORT_NUMBER)
所以每次我按下分机按钮,它只会显示“无响应”,这意味着请求至少已经完成。我做错了什么?你有没有考虑过这可能是一个CORS的骗局?尝试添加
self.send_头('Access-Control-Allow-Origin','*')
,self.send_头('Access-Control-Allow-Headers','Content Type,Authorization')
,self.send_头('Access-Control-Allow-Methods','GET,PUT,POST,DELETE')