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跨域有哪些解决方法？
2022-06-12 02:30:00 【竹林小蝦】
跨域是前端請求接口常見的場景，如何解决跨域呢？以及最常見的方法有哪些呢？
- CORS
cors是需要服務器端配置一個允許跨域的配置，
配置後請求頭就多了一條Access-Control-Allow-Origin，瀏覽器判斷通過就會允許跨域 - JSONP
其實是通過script標簽的特性（無跨域限制）來實現跨域的，也需要服務器端配合，且只能用get方法 - 反向代理
意思是用一個代理服務器來代理服務端 - 正向代理
意思是用一個代理服務器來代理客戶端，一般用瀏覽器做代理服務器
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