首页 > 代码库 > day 37 ajax跨域 浏览器同源测略
day 37 ajax跨域 浏览器同源测略
浏览器的同源策略
允许跨域:
script
img
iframe
不允许跨域:
ajax
跨域ajax
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> <h1>T1</h1> <input type="button" value="Ajax" onclick="AJAX();"> <input onclick="Jsonp();" type="button" value="Jsonp" > <script type="text/javascript" src="/statics/jquery-3.1.1.js"></script> <script> function Jsonp() { $.ajax({ url:‘http://127.0.0.1:8001/index‘, dataType:‘jsonp‘, // jsonp:‘callback‘, jsonCallBack:‘func‘ }) } function ff(arg) { console.log(arg) } // function Jsonp() { // var tag=document.createElement(‘script‘); // tag.src=http://www.mamicode.com/‘http://127.0.0.1:8001/index‘; // document.head.appendChild(tag); // document.head.removeChild(tag); // // } function AJAX() { $.ajax({ url:‘/index‘, type:‘post‘, data:{‘k‘:‘1‘}, success:function (arg) { console.log(arg); } }) } </script> </body> </html>
#!/usr/bin/env python # -*- coding:utf-8 -*- import tornado.ioloop import tornado.web import io class IndexHandler(tornado.web.RequestHandler): def get(self): # callback=self.get_argument(‘callback‘) # self.write(‘%s ([11,22,33]);‘ % callback) self.render(‘index.html‘) def post(self, *args, **kwargs): self.write(‘t1t1t1t1t1posttttt‘) settings = { ‘template_path‘: ‘views‘, ‘static_path‘: ‘statics‘, ‘static_url_prefix‘: ‘/statics/‘, } application = tornado.web.Application([ (r"/index", IndexHandler), ], **settings) if __name__ == "__main__": application.listen(8002) tornado.ioloop.IOLoop.instance().start()
#!/usr/bin/env python # -*- coding:utf-8 -*- import tornado.ioloop import tornado.web import io import check_code class IndexHandler(tornado.web.RequestHandler): def get(self): self.write(‘ff([11,22,33,44])‘) def post(self, *args, **kwargs): self.write(‘ff([11,22,33,44])‘) settings = { ‘template_path‘: ‘views‘, ‘static_path‘: ‘statics‘, ‘static_url_prefix‘: ‘/statics/‘, } application = tornado.web.Application([ (r"/index", IndexHandler), ], **settings) if __name__ == "__main__": application.listen(8001) tornado.ioloop.IOLoop.instance().start()
day 37 ajax跨域 浏览器同源测略
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