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跨域实践二三事
source link: https://juejin.im/post/5a7730336fb9a0636263adf5
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文章首发 跨域是日常开发中经常开发中经常会接触到的一个重难点知识，何不总结实践一番，从此心中对之了无牵挂。 同源策略 之所以会出现跨域解决方案，是因为同源策略的限制。同源策略规定了如果两个 url 的协议、域名、端口中有任何一个不等，就认定它们跨源了。比如下列
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