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原因：缺少 CORS header 'Access-Control-Allow-Origin'

[英]Reason: CORS header ‘Access-Control-Allow-Origin’ missing

原文 2020-07-23 09:02:36 2 1 angular

I'm getting Cross-Origin Request Blocked:我的跨域请求被阻止：

The Same Origin Policy disallows reading the remote resource at http://localhost:8092/authenticate.同源策略不允许读取位于 http://localhost:8092/authenticate 的远程资源。 (Reason: CORS header 'Access-Control-Allow-Origin' missing). （原因：缺少 CORS header 'Access-Control-Allow-Origin'）。

This error occurs while executing an Angular 8 project when I click the login button.当我单击登录按钮时执行 Angular 8 项目时发生此错误。

1 个解决方案

You need to add the Access-Control-Allow-Origin: * header to the server endpoint (Note: this allows access from anywhere if used in production)您需要将Access-Control-Allow-Origin: * header 添加到服务器端点（注意：如果在生产中使用，这允许从任何地方访问）

原因：即使在Java资源中明确指定，CORS标头“ Access-Control-Allow-Origin”也丢失 - Reason: CORS header ‘Access-Control-Allow-Origin’ missing even though explictly specificed in java resource

Spring MVC & Angular - 原因：缺少 CORS 标头“Access-Control-Allow-Origin” - Spring MVC & Angular - Reason: CORS header ‘Access-Control-Allow-Origin’ missing

（原因：缺少 CORS header 'Access-Control-Allow-Origin'）。还显示 id undefined - (Reason: CORS header ‘Access-Control-Allow-Origin’ missing). also showing id undefined

不允许多个 CORS 标头“Access-Control-Allow-Origin”/缺少 CORS 标头“Access-Control-Allow-Origin”） - Multiple CORS header ‘Access-Control-Allow-Origin’ not allowed / CORS header ‘Access-Control-Allow-Origin’ missing)

“cors header'access-control-allow-origin'missing”拒绝请求，即使允许来源 - “cors header ‘access-control-allow-origin’ missing” denies request, even though origin is allowed

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相关问题 原因：即使在Java资源中明确指定，CORS标头“ Access-Control-Allow-Origin”也丢失 - Reason: CORS header ‘Access-Control-Allow-Origin’ missing even though explictly specificed in java resource Spring MVC & Angular - 原因：缺少 CORS 标头“Access-Control-Allow-Origin” - Spring MVC & Angular - Reason: CORS header ‘Access-Control-Allow-Origin’ missing （原因：缺少 CORS header 'Access-Control-Allow-Origin'）。还显示 id undefined - (Reason: CORS header ‘Access-Control-Allow-Origin’ missing). also showing id undefined 不允许多个 CORS 标头“Access-Control-Allow-Origin”/缺少 CORS 标头“Access-Control-Allow-Origin”） - Multiple CORS header ‘Access-Control-Allow-Origin’ not allowed / CORS header ‘Access-Control-Allow-Origin’ missing) “cors header'access-control-allow-origin'missing”拒绝请求，即使允许来源 - “cors header ‘access-control-allow-origin’ missing” denies request, even though origin is allowed Socket.io + Nodejs + Angular2 +-缺少CORS标头'Access-Control-Allow-Origin' - Socket.io + Nodejs + Angular2+ - CORS header 'Access-Control-Allow-Origin' missing Nginx中的Angular2-缺少CORS标头'Access-Control-Allow-Origin' - Angular2 in nginx - CORS header 'Access-Control-Allow-Origin' missing Access-Control-Allow-Origin CORS 上传大文件时缺少Header - Access-Control-Allow-Origin CORS Header missing when uploading large files .NET Core API 捕获错误时缺少 CORS 标头“Access-Control-Allow-Origin” - CORS header ‘Access-Control-Allow-Origin’ missing when .NET Core API catches an error CORS：不存在“ Access-Control-Allow-Origin”标头Angular 2 - CORS : No 'Access-Control-Allow-Origin' header is present Angular 2

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