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- 请求的资源上没有“Access-Control-Allow-Origin”标头。 因此不允许Origin'http：// localhost：8100'访问

[英]— No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:8100' is therefore not allowed access

 原文  2018-03-04 10:03:52  1   1    javascript/ angular/ laravel/ ionic-framework

问题描述

while trying to access http:Localhost:9000/api/post from provider i get this error 尝试从提供程序访问http:Localhost:9000/api/post此错误

Failed to load http://127.0.0.1:8000/api/post: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:8100' is therefore not allowed access. is therefore not allowed access

any knows what is wrong. 任何人都知道什么是错的。

1 个解决方案

解决方案1
 2  2018-03-04 10:48:17

Your front and back end are on different ports which means your ajax requests are subject to cross origin security. 您的前端和后端位于不同的端口上，这意味着您的ajax请求受到跨源安全性的约束。

You need to do changes at your back-end api (server side) by adding 您需要通过添加在后端api（服务器端）进行更改

Access-Control-Allow-Origin: "*"; Access-Control-Allow-Origin：“*”;

in response headers according to the language you are using php,java or python etc 根据你使用php，java或python等语言的响应头

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