addCustomHeaders() not working on Media Library v10/Laravel 9

[duytanvu]

Issue

After upgrading from Laravel 8 + Media Library v8 to Laravel 9 + Media Library v10, files uploaded to S3 using:

addCustomHeaders(['ACL' => 'public-read'])

are no longer assigned the public-read ACL.

On Laravel 8 / Media Library v8:

• Files were uploaded with public-read ACL
• Accessible via ->getUrl()

After upgrading:

• Files upload successfully
• ACL is missing → objects are private
• ->getUrl() no longer works

This appears related to the upgrade to:

league/flysystem-aws-s3-v3 ^3.0

[duytanvu]

This seems to be caused by Flysystem v3.

In createOptionsFromConfig(), configuration values are appended under the params key.
As a result, the ACL is stored as:

$options['params']['ACL']

However, the adapter later tries to read:

$options['ACL']

Because of this mismatch, the ACL option is ignored during upload.

I've opened a PR to address this.

[freekmurze]

Thanks!