缺少CORS标头“ Access-Control-Allow-Origin”-PHP，角度

Question

Currently developing an API in PHP which has the following headers 当前正在用PHP开发具有以下标头的API

header('Access-Control-Allow-Origin: *');
header('Content-Type: application/json');
header('Access-Control-Allow-Headers: Content-Type');

which works when called from Postman and from an Ionic application. 从Postman和Ionic应用程序调用时可以正常工作。

However when calling it from a web application on localhost using angular I get an error with 但是，当使用angular从本地主机上的Web应用程序调用它时，出现错误

Reason: CORS header 'Access-Control-Allow-Origin' missing). 原因：CORS标头“ Access-Control-Allow-Origin”丢失）。

Despite the header being present and other application applications being able to call it. 尽管标题存在并且其他应用程序应用程序也可以调用它。

Answer 1

Add the following to your config.xml file: 将以下内容添加到您的config.xml文件中：

<access origin="*"/>
<allow-intent href="*"/>