Besides resources, Tencent Cloud CDN will also cache the following headers from the origin server and return them to users by default:
Access-Control-Allow-Origin
Timing-Allow-Origin
Content-Disposition
Accept-Ranges
If your origin server has special headers that need to be cached and returned to users by CDN, you can enable header cache.
Configuration Guide
Viewing the configuration
Log in to the CDN console, select Domain Management on the left sidebar, and click Manage on the right of a domain name to enter its configuration page. Open the Cache Configuration tab to find the HTTP Header Cache Configuration section. The configuration is enabled by default, and you can disable it as needed.
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