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解决跨域的方法以及原理 #243

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smileyby opened this issue Jun 25, 2022 · 0 comments

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跨域

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smileyby commented Jun 25, 2022

前端：JSONP、websocket、postmessage、proxy
后端：CORS

proxy代理原理：同源策略是浏览器端的限制，服务器之间是没有这个限制的。所以通过在客户端和服务器中间，额外创建一个服务来转发请求的方式是可以实现跨域的

CORS：浏览器的策略，跨源资源共享 (CORS)（或通俗地译为跨域资源共享）是一种基于 HTTP 头的机制，该机制通过允许服务器标示除了它自己以外的其它 origin（域，协议和端口），使得浏览器允许这些 origin 访问加载自己的资源。

smileyby added the 跨域 label

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