tencent cloud

Overview

This document provides an overview of APIs and SDK code samples related to CORS preflight requests.

Description

This API (OPTIONS Object) is used to send a preflight request to check the CORS configuration of an object. Before making an actual CORS request, you can send an OPTIONS request that includes the source origin, HTTP method, and headers to COS to determine whether an actual CORS request can be sent. If there is no CORS configuration, "403 Forbidden" will be returned. You can enable CORS for a bucket using the PUT Bucket cors API.

Sample code

cos.optionsObject({
   Bucket: 'examplebucket-1250000000', /* Your bucket name. Required. */
   Region: 'COS_REGION',  /* Bucket region, such as `ap-beijing`. Required. */
   Key: '1.jpg',  /* Object key stored in the bucket (such as `1.jpg` and `a/b/test.txt`). Required. */
   Origin: 'https://www.qq.com', /*Required*/
   AccessControlRequestMethod: 'PUT', /*Required*/
   AccessControlRequestHeaders: 'origin,accept,content-type' /*Optional*/
}, function(err, data) {
   console.log(err || data);
});

Parameter description

Callback function description

function(err, data) { ... }