GCP云存储在指定cache-control header后仍然缓存public object

Question

I am using the cloud storage REST api to upload the image to the bucket, which is public to allUsers. When uploading a different image with the same object name it overwrites it on GCP, but the public link still displays the old object. I tried setting the Cache-Control header of the request to "no-store", but the problem still persisted. The metadata of the object (on the GCP UI) shows no field supplied in the Cache-Control. How can I force it to refresh the file at once?

Answer 1

As per this cache directives for no - store A response with no-store isn't cached. This can be overridden on a per-backend basis with the FORCE_CACHE_ALL cache mode.

By default, when the entire bucket is public, or the individual objects are public and the individual objects don't specify Cache-Control metadata, Cloud Storage assigns a Cache-Control: public, max-age=3600 header to the object. You can set different values by using Cache-Control metadata . By setting the max age value less this may help you in resolving your issue.