我想通过API读取一个pdf文件，但它给了我这个错误：

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource. (Reason: CORS header ‘Access-Control-Allow-Origin’ missing).

在我尝试Ammar answer后，错误消息更改为

Access to fetch the resource from origin has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. If an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled.

这是我的博客

<?php

return [

    'paths' => ['api/*'],

    'allowed_methods' => ['*'],

    'allowed_origins' => ['*'],

    'Access-Control-Allow-Origin'=> '*',

    'Access-Control-Allow-Headers'=> 'Origin, Content-Type',

    'allowed_origins_patterns' => [],

    'allowed_headers' => ['*'],

    'exposed_headers' => false,

    'max_age' => false,

    'supports_credentials' => false,

];

如何解决这个错误？